Spreadsheets are super helpful in helping you stay organized when calculating recipe costs because they have different rows and columns to track all your _____ individually and what they cost.

Question 1 options:

ideas


customers


ingredients


reviews

Question 2 (1 point)
Ryan is a baker who likely does what to his ingredients rather measuring them out with cups?

Question 2 options:

splitting up


sharing


weighing out


cultivating

Question 3 (1 point)
What company has a trade secret that claims to use "eleven herbs and spices," supposedly scribbled on a piece of yellow notepaper inside an iron safe in Louisville, Kentucky, and as the story goes, the safe is actually a vault surrounded by cameras, motion-detectors, and even guards!

Question 3 options:

Chik-Fil-A


Coca Cola


McDonald's


Kentucky Fried Chicken

Question 4 (1 point)
What kind of measuring device comes in sets, with each part of the set holding a pre-determined volume and increasing in size from ¼ to 1?

Question 4 options:

strain measuring spoons


conversion measuring spoons


tare measuring cups


standard measuring cups

Question 5 (1 point)
What kind of cups for measuring are sometimes made from glass or something transparent so the markings on the side with different measurements are visible?

Question 5 options:

graduated measuring cups


standard measuring cups


tare measuring cups


Maillard measuring cups

Question 6 (1 point)
Schools, hospitals, prisons, universities, summer camps, and government buildings are just a few examples of the types of institutions and commercial kitchens that depend on what kind of recipes on a daily basis?

Question 6 options:

trade secret recipes


small volume recipes


improvised recipes


standardized recipes

Question 7 (1 point)
As a big-time chef, your job entails nothing more than simply putting out spectacular food.

Question 7 options:

True


False

Question 8 (1 point)
Rice never loses its food value, regardless of how many times its rinsed.

Question 8 options:

True


False

Question 9 (1 point)
When a food cost analysis is properly done, it can serve as a tool to monitor your overall expenses so you can make a profit and stay within the confines of your budget.

Question 9 options:

True


False

Question 10 (1 point)
When looking for consistency and reliability, in cooking and other endeavors, it's far better to rely on what rather than guesswork?

Question 10 options:

intuition


hypotheses


numbers


estimates

Question 11 (1 point)
Most failing restaurants find themselves in trouble because they do not understand the what that is associated with what they are doing?

Question 11 options:

cost


time


resilience


integrity

Question 12 (1 point)
When adhering to the ABCs of eating when planning out your diet, ensuring that you are not too heavy on fat, salt, or sugar means that you are using what?

Question 12 options:

adequacy


moderation


variety


balance

Question 13 (1 point)
Inventory control provides predictable information on the quantity of ingredients needed for each _____ cycle.

Question 13 options:

revenue


standardized


nutrient


production

Question 14 (1 point)
As delightful as it is to design a delicious, exciting, and colorful menu, it is equally as important to see the hidden costs and risk behind every decision.

Question 14 options:

True


False

Question 15 (1 point)
What happens to ingredients through the process of trimming, cleaning, and cooking?

Question 15 options:

They shrink.


They grow.


They disintegrate.


They multiply.

Answers

Answer 1

Answer:

A-Ideas

Explanation:


Related Questions

What would happen to the boilling point of water at 8000m above sea level where air pressure is lower

Answers

The boiling point will be lower, because water boils when its vapor pressure is equal to atmospheric pressure.

What is atmospheric pressure?

Atmospheric pressure is described as the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.

If you are at 8 000 m above sea level, the air pressure is lower than one atmosphere and the equilibrium between the water and air pressures will be reached before.

In conclusion, Atmospheric pressure is caused by the weight of the air molecules above.

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The boiling point of water at 8000m above sea level where air pressure is lower would be significantly lower.

How does air pressure affect boiling point ?

The boiling point of water decreases as the air pressure decreases. At an altitude of 8000 meters above sea level, the air pressure is significantly lower than it is at sea level, so the boiling point of water would also be significantly lower.

At sea level, the normal boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at a standard atmospheric pressure of 101.3 kPa. As the altitude increases, the atmospheric pressure decreases, so the boiling point of water decreases as well.

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What is the relative rate of diffusion of CH4 and NO2?

Answers

Answer:

=32×1632×√1632=34√2.

Explanation:

What are the composite units of each type of solid? What types of forces hold each type of solid together? Match the items in the left column to the appropriate blanks in the sentences on the right. Reset Help nonbonding Molecular solids are those solids whose composite units are together by the following kinds of intermolecular forces: Molecular solids are held bonding coulombic forces and hydrogen lonic solids are those solids whose composite units are Ionic solids are held together Individual atoms by dispersion forces network covalent dispersion forces, dipole- dipole forces Atomic solids are those solids whose composite units are Atomic solids can themselves bo divided into three following categories, where each is held together by a different kind of force. The first category, which includes only the noble gases in their solid form and is held together by relatively weak atomic solids. The second category, which is held together by bonds and includes such examples as copper or silver, is atomic solids. The last category, which is hold together by and includes such examples as diamond, graphito, and silicon dioxide, is atomic solids ions metallic molecules covalent bonds lon-dipole forces

Answers

Solids known as molecular solids are made up of molecules. Intermolecular forces such as hydrogen bonds, dipole-dipole forces, and dispersion forces hold together molecular solids. Solids with ions as their constituent parts are known as ionic solids. Ion-dipole forces keep ionic solids together.

Atomic solids are those whose constituent atoms make up their entire structure. Atomic solids can be broken down into the three categories below, each of which is held together by a distinct set of forces. Dispersion forces atomic solids is the first category, which only consists of noble gases in their solid states and is held together by coulombic forces that are comparatively weak. Metallic atomic solids fall under the second category, which is held together by nonbonding bonds and contains substances like copper and silver as examples. Network covalent atomic solids are the final group of materials that are held together by covalent bonds and include materials like silicon dioxide, graphite, and diamond.

What five intermolecular forces exist?

Intermolecular forces can be divided into three categories: hydrogen bonds, dipole-dipole interactions, and London dispersion forces (LDF). Despite the fact that molecules can have any combination of these three types of intermolecular forces, all substances at least have LDF.

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Where do the 2 ATP produced in fermentation come from?

Answers

Glycolysis during fermentation only yields two ATP each glucose molecule, which is significantly less ATP than is produced during respiration.

What distinguishes a compound from a molecule?

A collection of more than two atoms joined by chemical bonds is referred to as a molecule. The compound is a mixture made up of two or more distinct kinds of elements that are chemically combined in a predetermined ratio. Not every molecule is a compound. Molecules make up all chemicals.

Just how many atoms make up a molecule?

According to the context, it term might or might not include ions that meet this requirement. A molecule is a collection of atoms that are held together by the attractive forces called as chemical bonds.

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Explain the reason why you tested electrical conductivity with a solution containing both methanol and water.

Answers

In comparison to non-polar hydrocarbon dielectrics like gasoline and diesel fuel, methanol is a polar substance like water and has a relatively high conductivity (conductivities less than 1 x 10⁴ pS/m).

Does methanol have a higher conductivity than water?

Therefore, the self dissociation into ions for methanol and ethanol will be less strong than in water. But even in pure ethanol and methanol solutions, these ions will still exist and conduct electricity, albeit at very low conductivities.

Water's electrical conductivity is a measure of how well it can carry a current of electricity. The amount of electrical current that can be conducted in water increases with the concentration of dissolved charged chemicals, also referred to as salts.

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How many atoms are there in a 2 moles of oxygen atoms? How many atoms are there in 2 moles of oxygen molecules?

Answers

There are 6.022 x 10^23 atoms in 2 moles of oxygen atoms. There are 2 x 6.022 x 10^23 atoms in 2 moles of oxygen molecules.

What is molecules?

Molecules are the smallest particles of a substance that can exist on its own and retain the chemical properties of that substance. Molecules are composed of atoms that are held together by chemical bonds. Molecules can be composed of atoms of the same element, such as oxygen molecules that are composed of two oxygen atoms, or of atoms of different elements, such as water molecules composed of two hydrogen atoms and one oxygen atom.

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What are the products of the following reaction?
OCH2CH2OH excess HBr--> heat
O Br - OCH2CH2Br
O Br + BrCH2CH2OH
O OH + BrCH2CH2Br
O Br + BrCH2CH2Br

Answers

The products of the reaction of OCH2CH2OH with excess HBr under heat are: OCH2CH2Br (2-bromoethanol) and BrCH2CH2OH (1-bromo-1-propanol)

The mechanism for the reaction of OCH2CH2OH with excess HBr under heat is a multi-step process that involves the formation of a carbocation intermediate. Step 1: Protonation of the oxygen atom in OCH2CH2OH by HBr to form a good leaving group (OH) and a carbocation intermediate.

Step 2: Bromine atom from HBr attacks the positively charged carbon of the carbocation intermediate to form a covalent bond, resulting in the formation of intermediate compound.Step 3: Deprotonation of the intermediate compound by the remaining hydroxyl group to give OCH2CH2Br (2-bromoethanol) and HBr

Step 4: the HBr molecule from the step 3 could protonate another molecule of OCH2CH2OH and repeat the step 1 to 3 to form BrCH2CH2Br (1-bromo-1-propanol) as second product.

Overall, the reaction is an electrophilic substitution reaction, with HBr as the electrophile and the oxygen atom of the alcohol as the nucleophile.

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What happens to the energy put into the ice maker? (What is it used to do? How
is it transformed or transferred?)

Answers

Answer:

When ice or any other solid melts, its potential energy increases. Indeed, this is the only increase in energy, since the thermal kinetic energy, or temperature, does not increase while melting. Potential energy is the latent energy that could be released by the water, and this increases because the water will release heat energy if it is frozen solid again.

Ice is the lowest energy state of water at normal Earth pressures. At each phase change of water, whether ice to liquid water or liquid water to water vapor, the potential energy decreases. This is due to the Law of Conservation of Energy. Materials undergoing a change of state absorb or release heat energy, but their temperatures do not change. This is because, while the state change is occurring, all the heat energy is converted into the potential energy of the new state of matter.

Water, in particular, has a very large change in potential energy during phase changes. It takes a great deal of energy to change water from one state to another. This is because of the strong hydrogen bonds that form between water molecules. The liquid phase allows water molecules to be in contact with each other, while the solid phase puts water molecules in an overall optimal configuration relative to each other.

Explanation:

Draw the structure of the major organic product(s) of the following reaction.
excess Br2
excess OH

Answers

The major organic product of this reaction is 2-bromobutane, a saturated hydrocarbon with a bromine atom attached to the second carbon atom.

The major organic product is 2-bromobutane.

Structure:

CH3 CH2 CH2 CH2 Br

    |   |   |

    CH3 CH2 Br

1) The reaction begins with bromine reacting with the 2-methylpropane molecule to form the intermediate 2-bromo-2-methylpropane.

2) The intermediate then reacts with hydroxide ions to form the final product, 2-bromobutane.

3) The final product is a saturated hydrocarbon with a bromine atom attached to the second carbon atom.

The major organic product of this reaction is 2-bromobutane, a saturated hydrocarbon with a bromine atom attached to the second carbon atom.

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We observe that 0.123 mole of the element bromine combines with 0.123 mole of the element lead to form a compound. What is the empirical formula for the compound?

Answers

The empirical formula of the compound with 0.123 moles of bromine and 0.123 moles of lead would be  PbBr.

Empirical formula determination

The empirical formula of a compound is the chemical formula of the compound where the component atoms are in their simplest, whole-number ratios.

In this case, the compound contains bromine and lead:

Br = 0.123 mole

Pb = 0.123 mole

Dividing through by the smallest mole

Br = 0.123/0.123 = 1

Pb = 0.123/0.123 = 1

Thus, bromine and lead are present in a 1:1 ratio in the chemical formula.

In other words, the empirical formula of the compound containing 0.123 moles of bromine and 0.123 moles of lead is PbBr.

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Which is true of an atom? A. The valence electrons make up the majority of the mass and volume of an atom. B. The electron cloud makes up the majority of the mass and volume of an atom. C. The valence electrons make up the majority of the mass of an atom but do not take up much volume. D. The electron cloud makes up the majority of the volume of an atom but does not have much mass

Answers

The statement that is true about an atom is D. The majority of volume of an atom is make up by the electron cloud which has no mass.

In an atom, there are three sub-atomic particles that are protons, electrons and neutrons. The protons and neutrons are present inside the nucleus while the electrons revolve around the orbits i.e., circular orbits. The majority of volume of an atom is make up by the electron cloud which has no mass. Electrons are negatively charged in nature while the positive species are protons and neutrons carry no charge in them. The circular path is termed as orbits in which electrons revolve.

Thus, option D is the correct choice.

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4 P (s) + 5 O2 (g) -> P4O10 (s)

If 0.554 mol of phosphorus burns, what mass of oxygen is used?

Answers

MassMass of oxygen used on combustion of 0.554 mol of phosphorus is 957.12 g.

What is combustion?

Combustion is the name given to the chemical reaction in which a material combines with oxygen to produce heat. A substance is said to be combustible if it can burn. Another name for it is fuel. Fuel can be either solid, liquid, or gaseous.

Since, 4 moles of phosphorus burns in the presence of 5 moles of oxygen

Therefore, 0.554 moles of phosphorus will burn in presence of 54×0.554=29.91 moles of oxygen.

Molar mass of oxygen is 32 g/mol.

Hence, mass of oxygen used can be calculated by:

Mass of oxygen used under given reaction conditions =32×29.91⇒957.12 g.

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Mass of oxygen used on combustion of 0.554 mol of phosphorus is 957.12 g. Oxygen has an atomic mass of 15.9994. ss.

What is combustion?

Combustion is the name given to the chemical reaction in which a material combines with oxygen to produce heat. Another name for it is fuel. Fuel can be either solid, liquid, or gaseous.

What is combustion of phosphorus?

4 moles of phosphorus burns in the presence of 5 moles of oxygen 0.554 moles of phosphorus will burn in presence of 54×0.554=29.91 moles of oxygen. Molar mass of oxygen is 32 g/mol. Mass of oxygen used under given reaction conditions 32×29.9 = 957.12 g.

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16% of m is 28
16% x m = 28
0.16 x m = 28
m = ...

Answers

Answer:

m=175

Explanation:

100/16 = 6.25

6.25x28 = 175

Answer: To solve this equation for m, you can divide both sides of the equation by 0.16. This will give you:

m = 28 / 0.16

Simplifying the right side of the equation gives:

m = 175

Therefore, m = 175.

Explanation:

What is the relationship between CO2 levels and sea levels?

Answers

The relationship between the CO₂ and the sea levels is the carbon dioxide is higher about 10 % at  deep ocean than the surface.

This  warms world due to the greenhouse gases that included the carbon dioxide , the water  heat up and it expands due to which the sea level rises.  if we remove the extra heat from the ocean that caused by the short lived gases , it lowers the sea levels and this process is very slow.

The carbon dioxide that dissolves in the ocean will cause the sea water to be acidify. this will harmful for the shellfish and the corals.

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What forces are acting on a meter stick?

Answers

Whenever the meter stick stood by itself, two forces were acting on it: some upward pressure of the fulcrum as well as the descending gravity force.

To demonstrate that the resultant force was zero when the metre stick has been in equilibrium, you must balance forces acting on it in the first section. To figure out the mass of the meter stick, you should balance the metre stick's weight against with a known weight inside the second section.

In the event that the ruler was balanced, the support which it is resting applies a force equal in strength to that of the weight's opposite force. Therefore, the ruler is being acted upon by its weight as well as the friction coefficient somewhere at support.

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Identify one advantage to each of the following models of electron configuration: Dot structures Arrow and line diagrams Written electron configurations Type in your answer below.

Answers

Simple Lewis dot structures make it easy to see how many valence electrons are present in an atom. Valence electrons are shown as dots surrounding the atom that are organized in pairs in Lewis dot formations.

Electron spin direction is displayed using arrow and line diagrams, along with each orbital. The electron configuration of atoms is shown using arrow and line diagrams or orbital diagrams, which use boxes and arrows to indicate the different orbitals and the pairing arrangement of electrons. This model has the benefit of displaying each orbital as well as the electrons' spin polarity.

Written electron configurations are concise and also depict how the electrons are distributed throughout the sublevels. The number of electrons in a specific sublevel is indicated by superscripts in written electron configuration notation. Written electronic configuration has the advantage of being more compact due to the removal of boxes and arrows. It also displays how electrons are distributed among sublevels.

The arrangement of electrons within an atom's orbitals, shells, and subshells is known as electron configuration.

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Answer:

Dot structures make it easy to count electrons and they show the number of electrons in each electron shell.

Arrow and line diagrams show the spin of electrons and show every orbital.

Written configurations require minimal space and show the distribution of electrons between subshells.

Explanation:

correct on edg 2023

Which represents the greatest mass?
• all the same
• 1.0 mol P
• 1.0 mol I
• 1.0 mol K
• 1.0 mol Al​

Answers

Answer:

it is 1 mole of I is correct

anybody know the answer for these

Answers

KI - Ionic compound,  KCl - Ionic compound,

C₆H₁₂O₆ - Covalent compound, KNO₃ - Ionic compound,

C₆H₄Cl₂ - Covalent compound, C₆H₅COOH - Covalent compound

CH₃COOH - Covalent compound, Parafin wax - Covalent

HCl - Covalent compound

What are ionic and covalent compounds?

Ionic compounds can be classified as compounds formed between cation ions and an anion. A cation can be described as an electropositive ion and has the tendency to donate valence electrons. Similarly, anions are electronegative ions and have a tendency to accept electrons.

In an ionic compound, an ionic bond contains the complete transfer of electrons, therefore, there exists an electrostatic force of attraction that forms a strong bond.

In a covalent compound, the covalent bond exhibits the mutual sharing of electrons. Shared pairs of electrons are hard to give away as nuclei of two chemical elements together share the electrons and produce a bond stronger.

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What is the evidence for Darwin's theory of evolution?

Answers

The evidence for Darwin's theory of evolution is the consistency of the sequence of fossils from early to recent.

Changing populations and species of organisms are at the heart of biological evolution. The British naturalist Charles Darwin is most likely the first individual that comes to mind today when we discuss evolution. The biological evolution via natural selection theory was put out by British biologist Charles Darwin. Darwin believed that species change over time, give rise to new species, and descended from a single ancestor through the process of evolution. Charles Darwin's theory of evolution is known as natural selection. Animals with heritable qualities that aid in survival and reproduction will often generate more offspring than their contemporaries due to the limited resources in nature, increasing the frequency of such traits through subsequent generations.Populations change throughout time through natural selection, becoming increasingly adapted to their surroundings. Natural selection is reliant on the environment and necessitates the presence of heritable variation within a population.

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18) Write the expression: the sum of the quantity h and 2 divided by 4. A) h 4 2 B) h 2 4 C) h 2 4 D) 4 h 2

Answers

The expression is  [tex]\frac{(h+2)}{4}[/tex] which can be solved by BODMAS rule

The abbreviation BODMAS, which stands for "Brackets, Order of powers or roots, Division, and Multiplication," is followed by the BODMAS rule. A stands for addition and S for subtraction. According to the BODMAS rule, multi-step mathematical statements must be solved in the BODMAS order from left to right. Similar to how Addition and Subtraction depend on which comes first in the sentence, Division and Multiplication are thought of as interchangeable operations.

The expression can be written as follows WE have 2 quantities h and 2

Their sum can be written as h+2 Now We have the sum divided by 4 so it can be written as : [tex]\frac{(h+2)}{4}[/tex]

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Select the correct answer. given: sno2 2h2 → sn 2h2o tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?
a. 1.57
b. 4.21
c. 634.8
d. 59,350

Answers

4.21 moles of SnO₂ are needed to produce 500.0 grams of Sn for the given reaction.

What is tin oxide reaction?

Tin oxide, is a compound with the formula SnO₂. It is a white or gray powder that is insoluble in water but soluble in strong acids and strong alkalis. Tin oxide is widely used as a pigment in ceramics, glasses, and paints, and in the manufacture of electronic devices such as transistors and solar cells. It is a versatile compound with a wide range of uses and can undergo several important reactions such as: Reduction to tin metal, formation of tin dioxide, formation of tin salts by reaction with acids.

For the given reaction:

SnO₂ + 2H₂ → Sn + 2H₂O

Mole ratio of SnO₂ and Sn is 1:1; this means 1 mole of SnO₂ is required to prepare each mole of Sn.

Now, for the moles of Sn:

n = m/M

Where, n = number of moles

m = mass of Sn (500 g)

M = molar mass of Sn (118.71 g/mol)

n = 500/118.71

n = 4.21 moles

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Benzene is a liquid with molecular formula C6H6
Ethene is a gas with molecular formula C2H4
Which statement is correct?
A 1 mole of benzene and 1 mole of ethene contain the same number of atoms.

B 1 mole of benzene and 1 mole of ethene both have a volume of 24 dm³ at room temperature and pressure.

C Both benzene and ethene have the same empirical formula.

D The number of carbon atoms in 0.5 moles of ethene is equal to the Avogadro constant.

And why is it that way?

Answers

Answer:

Benzene is a hydrocarbon with molecular formula of C6 H12 including 3πbond which are rotating

benzene is also a aromatic but ethene is not a aromatic

Explanation:

Answer: No, one mole of benzene (C6H6) and one mole of ethene (C2H4) will have the same number of molecules (6.02x10^23 benzene molecules and 6.02x10^23 molecules of ethene). However, one molecule of benzene consists of 12 atoms, while one molecule of ethene consists of 6 atoms.

In regard to the E2 mechanism, rank the leaving groups in order of increasing reaction rate.
Slowest
Fastest
R-F R-I R-Cl R-Br

Answers

In the E2 mechanism, the rate of the reaction is affected by the strength of the bond between the leaving group and the carbon atom, as well as the stability of the resulting carbocation intermediate.

The order of the leaving groups in terms of increasing reaction rate would be:

Slowest: R-F

R-F is a relatively weak bond and the fluoride ion is a very poor leaving group, so the reaction rate would be slow.

R-Br

R-Cl

R-I

Fastest: R-I

R-I is a relatively strong bond and the iodide ion is a very good leaving group, so the reaction rate would be fastest.

R-Cl

R-Br

In short, the stability of the leaving group decreases as the atomic number of the atom increases, and the bond dissociation energy of the leaving group also decreases. So, it is Iodide>Chloride>Bromide>Fluoride.

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Why is the mass of one mole of carbon (C) less than the mass of one mole Oxygen (O), even though the number of atoms of each element is the same

Answers

Chemistry quizzes What is the mass  of a single carbon atom if a mole of carbon atoms weighs 12 grams. The fact that 1 mole of carbon atoms weighs 12 grams is a given.

There are 6. 022 10 23 atoms in total, or Avogadro's number, in a mole of carbon atoms. As a result, 1 carbon atom weighs 2 10 - 23 g (in grams). The weight of one mole of carbon atoms is 12 g. 12 g to 12 amu. Because we defined the mole to make it so, the atomic mass and molar mass are in agreement. A material can have a variable mass per mole while yet having the same number of particles. Are there any examples you might use to support the claim? In current usage, the term "mole" merely denotes a group of countable items, more specifically the Avogadro number of the entities in question.

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A 325 0 g piece of gold at 427 degree C is dropped into 200.OmL of water at 22 0 degree C. Calculate the final temperature of the mixture. Specific Heat of gold

Answers

The final temperature of the mixture is 218.1°C.

The Specific Heat of gold 0.0123 J.

What is specific heat ?

Specific heat is known to be the amount of energy required to raise the temperature of a unit mass of a substance by 1 degree. It is a physical property of matter, usually expressed in units of Joules/Kilograms/Kelvin (J/kgK).

Mass of gold = 325 g

Heat absorbed by water = mass of gold x specific heat x temperature change

325 x 0.128 x 405

Heat absorbed by water = 154,400 J

Heat capacity of water = mass of water x specific heat

200 x 4.184

Heat capacity of water = 836.8 J/degree Celsius

Final temperature = (heat absorbed by water ÷ heat capacity of water) + Initial temperature

Final temperature = (154400 ÷ 836.8) + 22

Final temperature = 218.1°C

Q = mcΔT

836.8 J/°C = 325 × c × (427°C - 218.1°C)

836.8 J/°C = 325 × c × 208.9

c = 836.8/(325 × 208.9)

c = 836.8/67,892.5

c = 0.0123 J

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Express the answers to the following operations with the proper number of significant figures.

4. 108 x 5. 3

____ X 10^

Answers

The answer to the given operations with proper number of significant figures is 5.7 × 10².

Significant figures or numbers can be defined as those particular numbers or digits which are essential in determining the accuracy of a particular value. For example, 4.392 has 4 significant figures.

When we are rounding off a number to write it with the proper number of significant figures, we first need to decide the amount of significant figures that it should have.

On calculating the given operation,

⇒ 108 × 5.3 = 572.4

In significant figures,

= 5.72 × 10²

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A bleaching solution requires 6. 55 g of sodium hypochlorite. How many grams of a 21. 5% by mass solution of sodium hypochlorite should be used

Answers

A bleaching solution requires 6. 55 g of sodium hypochlorite. 30.47 grams of a 21. 5% by mass solution of sodium hypochlorite should be used

Mass of sodium hypochlorite = 6.55 g

percent composition = 21. 5%

This indicates that there are 21.5 grams of sodium hypochlorite present in every one hundred grams of solution.

Now calculate the number of grams of solution for 6.55 g of solution.

(6.55 g x 100) / 21.5 g = 30.47 g

Therefore, you will need 30.47 grams of a sodium hypochlorite solution that has a mass concentration of 21.5% in order to obtain 6.55 grams of sodium hypochlorite.

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The overall charge of an atom or ion is ________ if the number of electrons is ________ than the number of protons.

Answers

The overall charge of an atom or ion is negative if the number of electrons is greater than the number of protons.

What is electron?

A subatomic particle with a negative charge is called an electron. It is found outside the nucleus of an atom and is one of the main constituents of matter. Electrons are responsible for the chemical properties of atoms and thus play an important role in chemical reactions. Electrons have low mass and move around the nucleus at relativistic speeds. They are also responsible for the electrical and magnetic properties of atoms, and for the transmission of light and other forms of energy. Electrons can also interact with other particles and form complex structures, such as molecules.

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the formula for the selenate ion is seo42−. predict the formula for selenic acid.

Answers

Answer:

The formula for selenic acid is H2SeO4.

Explanation:

Selenic acid is an oxoacid of selenium, which means that it contains selenium and oxygen atoms bonded together in a compound that also contains hydrogen atoms. The selenate ion, which has the formula SeO42-, is an ion that contains selenium and oxygen atoms bonded together. Based on these facts, we can predict that the formula for selenic acid will contain selenium, oxygen, and hydrogen atoms.

To determine the specific ratio of atoms in the formula for selenic acid, we can look at the valences of the elements involved. The valence of an element is the number of bonds it can form with other atoms. Selenium has a valence of 6, oxygen has a valence of 2, and hydrogen has a valence of 1.

Since selenium has a valence of 6, it can bond with 6 oxygen atoms. This means that selenic acid will contain at least one selenium atom bonded to 6 oxygen atoms. In addition, selenic acid will contain hydrogen atoms, which can bond with oxygen atoms. Based on these considerations, we can predict that the formula for selenic acid will be H2SeO4, which contains one selenium atom bonded to 6 oxygen atoms and 2 hydrogen atoms.

The density of ________ is 0.900 g/L at STP? a) CO
b)CH4
c) NO
d) Ne
e) N2

Answers

Answer:ne

Explanation:

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