Which of these is a ball and stick model?

If 25 milliliter of 0. 80M HCl is used to completely neutralize 40. milliliters of NaOH solution, the molarity of the base is 0.5M.

The molarity of a solution can be calculated using the following expression:

M1V1 = M2V2

Where;

25 × 0.80 = 40 × M2

20 = 40M2

M2 = 20/40

M2 = 0.5M

Therefore, if 25 milliliter of 0. 80M HCl is used to completely neutralize 40. milliliters of NaOH solution, the molarity of the base is 0.5M.

Learn more about molarity at: https://brainly.com/question/12127540

Answer: Changes in the environment

Explanation: the rocks are subjected to extreme heat and pressure, volcanic activities or movements on the Earth's surface.

Answer:

63.7

Explanation:

Percent yield is actual yield over theoretical yield. In this case, 10/15.7 = .637 = 63.7%.

Answer:

Number of mentos

Explanation:

i took the quiz

The answers to your questions are as follows

A) The number of aluminium ions present = 1.62 * 10²³ ions

B) The number of chloride ions present = 9.86 * 10²³  ions

C) The mass of one unit of aluminium chloride = 133.34 grams

Given data :

mass of aluminium chloride = 37.2 g

molar mass of aluminium chloride = 133.34 g/mol

note : I mole of a molecule has 6 * 10²³ molecules  

Number of moles = mass / molar mass = 0.27 moles

A) aluminium ions present

moles of AlCl₃ * 6 * 10²³

= 0.27 * 6 * 10²³   = 1.62 * 10²³ ions

B) Chloride ions present

moles of AlCl₃ * 6 * 10²³  * 3

= 0.27 * 6 * 10²³ * 3

= 4.86 * 10²³ ions

C) The mass of one formula unit of aluminium chloride = 133.34 grams

Hence we can conclude that the answers to your question are as listed above.

Learn more about aluminium chloride : https://brainly.com/question/12849464

The reaction equation must first be put down and the stiochiometry is used to calculate the mass of the bicarbonate produced as 0.11 g.

A reaction refers to the transformation of reactants into products. We have the equation of this reaction as;

CO2 + H2O ---->H2CO3

If 1 mole of CO2 gas occupies 22400mL

x moles of CO2 occupies 40 mL

x = 0.0018 moles

If 1 mole of CO2 yields 1 mole of bicarbonate

0.0018 moles yields 0.0018 moles of bicarbonate

Mass of bicarbonate = 0.0018 moles * 61 g/mol = 0.11 g

Learn more about bicarbonate: https://brainly.com/question/8560563

Answer:

6 moles of Cl2

Explanation:

First, the equation has to be balanced, which makes it 4 FeCl3 + 3 O2 --> 2 Fe2O3 + 6 Cl2

Using this information, we can see that one mole of O2 will not be present in the reaction. Since four moles of FeCl3 are needed to react in the equation, which would produce six moles of Cl2, and only four moles of FeCl3 are present, six moles of Cl2 would be produced.

The partial stress of H2 is 737.47 mmHg Let's observe the Ideal Gas Law to find out the whole mols.

We count on that the closed vessel has 1L of volume

These are the whole moles. Now we are able to know the moles of water vapor, to discover the molar fraction of it.

Mole fraction is a unit of concentration, described to be identical to the variety of moles of an issue divided through the whole variety of moles of a solution. Because it's miles a ratio, mole fraction is a unitless expression.

Thus it is clear that the partial pressure of H2 is 737,47 mmHg.

To learn  more about partial pressure refer to the link :

https://brainly.com/question/19813237

Answer:

Explanation:

Nitric Acid (HN03)

Zn(OH)2 + 2HNO3 ==> Zn(NO3)2 + 2HOH

Answer:

%H20=

(14xH)+(7xO)______________________________ X 100(Mg) + (S) + (4 x O) + (14 x H) + (7 x O)Thus,(14 x 1.008) + (7x16.0)______________________________________ X 10024.31 + 32.06 + (4x16.0) + (14 x 1.008) + (7x16.0)=126.122_____________ X 100246.482= 0.512 x 100=51.2%There is 51.2% of water is Magnesium Sulphate-7-water.

Based on the equation of the reaction, the moles of chlorine gas initially in the vessel is 0.12 moles

The moles of chlorine initially present is determined using the equation of the reaction:

At STP, 1 mole of P4 reacts with 6 moles of chlorine.

Molar mass of P4 = 124.0 g

Molar mass of chlorine = 71.0 g

Mass of P4 in reaction vessel = 250 mg = 0.25g

moles of P4 in 0.25 g = 0.25/124 = 0.02 moles

0.02 moles of P4 will react with 0.02 × 6 moles of chlorine = 0.12 moles of chlorine.

Therefore, the moles of chlorine gas initially in the vessel is 0.12 moles.

Learn more about moles of a gas at: https://brainly.com/question/25417922

A solution has to do with the presence of a solute where there is a homogenous mixture of different substances in order to get their limit of solubility.

This refers to a method in organic chemistry where there is a sequence of reactions that are used to synthesize molecules.

Please note that your question is incomplete so I gave you a general overview to help you get a better understanding of the concept.

Read more about iterations here:

https://brainly.com/question/25754804

Prontosil is a compound produced by the coupled reaction of an aryldiazonium ion and an aromatic compound.

These are organic compounds in which there are ionic interactions between the azo group (-N₂⁺) and an anion X⁻.

The general structure is RN₂⁺X⁻.

The azo group characterizes as being unstable and reactive. This property is because one of the N atoms has a positive charge.

-N⁺≡ N

Aryldiazonium salt reactions can occur in two ways,

Coupling reactions are the aromatic electrophilic substitution, where the aryldiazonium ion acts as an electrophile for an activated aromatic compound to attack it.

The coupling reaction occurs at the azo group level.

In the exposed example,

In the attached files you will find the drawings.

You can learn more about diazonium compounds at

https://brainly.com/question/9061271

https://brainly.com/question/9389852

https://brainly.com/question/13147442

From the options, the statement ththat describes an acid - base reaction in the Arrhenius sense is; "an acid base reaction where one compound is donating an H+ and one atom is accepting an H+."

The Arrhenius definition of a base is that a base is a substance that releases hydroxide ions as its only negative ions in solution. An acid is a substance that produces hydrogen ions as its only positive ions in solution.

If we look at the definitions shown here, the only one that accurately depicts acid - base reaction in the Arrhenius sense is "an acid base reaction where one compound is donating an H+ and one atom is accepting an H+."

Learn more about Arrhenius definition: https://brainly.com/question/7217496

Answer:

Explanation:

The elements in Group I of the periodic table are called alkali metals. They are called alkali metals because they react with water to form alkali solutions. These metals are very reactive; hence they have to be stored under oil to protect them from corrosion by air and waterwaterwater

The group 1A elements, called alkali metals because they form alkalies on reacting with water. Alkalies are strong bases.

They are the metals that are soft, lustrous, and have a low melting point. Air and moisture react readily with alkali metals.

Special precautions must be taken when using and storing these metals due to their reactivity.

The seven alkali metals are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

Thus, the group 1A elements, called alkali metals because they form alkalies on reacting with water. Alkalies are strong bases.

Learn more about alkali metals

https://brainly.com/question/18153051

#SPJ4

A 33.0-L container at 96.2 kPa and 35 °C contains 1.24 moles of oxygen.

An ideal gas is a hypothetical gas whose molecules occupy negligible space and have no interactions, and which consequently obeys the gas laws exactly.

First, we will convert 35°C to Kelvin using the following expression.

K = °C + 273.15 = 35 + 273.15 = 308 K

We want to calculate the number of moles of oxygen in a 33.0-L container at 96.2 kPa and 308 K. We will use the ideal gas equation.

P × V = n × R × T

n = P × V / R × T

n = 96.2 kPa × 33.0 L / (8.31 l.kPa/mol.K) × 308 K = 1.24 mol

where,

A 33.0-L container at 96.2 kPa and 35 °C contains 1.24 moles of oxygen.

Learn more about ideal gases here: https://brainly.com/question/15634266

Answer:

B

Explanation:

The two countries that have nearly 50% of global coal reserves are

United States and Russia

Option B is correct

Estimates of total world proved recoverable coal reserves as were around 1,156 billion short tons, with five countries accounting for roughly 75% of the world's proven coal reserves.

In conclusion, The USA coal reserves amounted to nearly 248.9 billion metric tons in 2020

Read more about Nations

https://brainly.com/question/15115779

For all the reactions listed, the moles of products and limiting reactants are;

1. Molar cofficient - 6, oxygen is the limiting reactant

2. Molar coefficient - 8 chlorine is the limiting reactant

3. Molar coefficient - 4 and CO2 is the limiting reactant

A chemical reaction is a combination of reactants that yields products. Recall that the limiting reactant is the reactant that nis present in the least amount.

Let us now complete each reaction;

1. The molar coefficient of the product in reaction 1 is 6 and oxygen is the limiting reactant

2. The molar For all the reactions listed coefficent of the product in reaction 2 is 8 and chlorine is the limiting reactant

3. The molar coefficient of the product in reaction 3 is 4 and the limiting reactant is CO2.

Learn more about limiting reactant: https://brainly.com/question/14225536

The mass of an object with a net force of 356N and an acceleration rate of 4m/s² is 89kg.

The mass of an object can be calculated using the following formula:

F = ma

Where;

m = F/a

m = 356/4

m = 89kg

Therefore, the mass of an object with a net force of 356N and an acceleration rate of 4m/s² is 89kg.

Learn more about mass at: https://brainly.com/question/19694949

Answer:

So that we know how many electrons are thre in which shell and how many shells are present in an atom....

Explanation:

Hope it helps!!!

Based on the duration and effect of the environmental change, the correct categorization is as follows:

Environmental changes refers to changes that occur in the environment either due to natural causes or by human activities.

Environmental changes can be categorized into:

Short-term changes occur over a short period of time while long-term changes occur over a long period of time.

Based on the chart, the correct categorization is as follows:

Therefore, both long-term and short-term changes occur in the environment.

Learn more about environmental changes at: https://brainly.com/question/15825233

Answer:

hmm suspicious

lol I don't know bye

Answer:

(CH₃COO)₂Ca(aq) + Na₂CO₃(aq) = 2CH₃COONa(aq) + CaCO₃(s)

2CH₃COO⁻ + Ca²⁺ + 2Na⁺ + CO₃²⁻ = 2CH₃COO⁻ + 2Na⁺ + CaCO₃

Ca²⁺ + CO₃²⁻ = CaCO₃

Answer:

100

Explanation:

Will autoionzation of water be spontaneous at high temperature

Answer:

right answer is A bcz

Explanation:

In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.

Answer:

oxygen and hydrogen indifferent molecules

Answer:

the cycle of water and how it evaporates with energy from the sun and the droplets are stored in clouds which is condensation and when it rains or snows those are forms of precipitation

Explanation:

Answer:

it shows the continuous movement of water within the earth and atmosphere