Owing to the fact that allene is not a planar molecule, the hydrogen atoms in the molecule do not lie on the same plane.
What is a plannar molecule?A planar molecule refers to those molecules that lie on same plane. This means that the atoms in the molecules are all arranged along the same plane.
Now we know that the molecule allene is not a planar molecule. Owing to the fact that allene is not a planar molecule, the hydrogen atoms in the molecule do not lie on the same plane. All the carbon atoms present are sp2 hybridized.
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When the following redox equation is balanced with smallest whole number coefficients, the coefficient for nitrogen dioxide will be _____. I2(s) hno3(aq) ⟶ hio3(aq) no2(g) h2o(l)
In a redox reaction, electron could be lost or gained. The coefficients in the balanced redox reaction are; 1/2, 5, 1, 5, 2, 1.
What is a redox reaction equation?A redox reaction equation shows the species that were oxidized or reduced in a redox reaction. In this case, we are asked for the coefficients in a balanced redox reaction equation.
We must recall that five electrons were lost/gained in the process hence the balanced reaction equation is;
1/2I2 + 5HNO3 -----> IO3^- + 5NO2 + 2H2O + H^+
The coefficients in the balanced equation therefore are; 1/2, 5, 1, 5, 2, 1.
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The following redox equation is balanced with the smallest whole number coefficients, the coefficient for nitrogen dioxide will be 10.
What are redox reactions?
In redox reaction, there is transfer of electrons between the species of the reactions.
The given redox reaction is
[tex]\rm I2 (s) + HNO_3 (aq) -- > HIO_3 (aq) + NO_2 (g) + H_2O[/tex]
To find coefficient of the compounds of the reaction, there are coefficient calculator present.
Thus, the coefficient for nitrogen dioxide will be 10.
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Question 6 of 10
Which of these accurately describes a difference between nuclear energy and
fossil fuel?
O A. In nuclear fuel reactions, heat is released that is used to do work.
O B. Nuclear fuel has a higher energy density than fossil fuels.
O C. Fossil fuels have a higher energy density than nuclear fuel.
O D. In fossil fuel reactions, heat is released that is used to do work.
Answer:
b. nuclear fuel has a higher energy density than fossil fuels.
Explanation:
Nuclear fuel is a quantity of energy measured in joules; therefore, it has the same units as electrical and mechanical energy.
After completing their tests, the students make recommendations on how to increase the final temperature of the
mixture
Based on the data in the table, select if the proposed improvements would increase or decrease the final
emperature of the mixture. Place a check mark in the appropriate box in each row.
Answer: test two
Explanation: it sits in between both
Strong bases are ____________ of group ____________ metals (ex. ____________ ) or larger group ____________ metals (ex. ____________ ), or oxides of the same metals.
The strong bases are hydroxides of group 1 and 2 metals (ex. Sodium, Potassium) or larger group transition metals (Copper, Iron), or oxides of the same metals.
Strong bases formulationIt follows from structure of strong bases that they are composed of highly electropositive metals of groups 1 and 2 and the hydroxide ion.
Additionally, transition metals may also form bases with the hydroxide ion or oxides of this transition metals.
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Can you store cuso4 in an aluminum container? explain your reasoning
We can store the copper sulphate solution in alumiun container, if cover on alumiun is present.
Can you store cuso4 in an aluminum container?Aluminium is more reactive than copper so the Aluminium will displace copper sulphate from its solution by reacting with it but if there is cover on the aluminium then the alumium can't react with copper.
So we can store the copper sulphate solution in alumiun container.
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No, we cannot store CuSO₄ in an aluminum container because aluminum will displace the copper present in the solution.
Why do different chemicals require different containers?Different chemicals are put in different containers, usually glass, plastic, dark container, or light container.
Chemicals element are reactive to different substances and to each other.
That's why they are put in separate and different types of containers according to their reactivity.
Thus, No, we cannot store CuSO₄ in an aluminum container because aluminum will displace the copper present in the solution.
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What is the temperature of the flame in degrees Celsius?
You measure the flame of a candle and get a reading of 1,376.06 K. This value is equal to
Answer:
- Deep red fire is about 600-800° Celsius
- Answer: {1102.91}
Given: K= °C + 273.15
K = 1,376.06
Since you’re trying to find C (Celsius) you want to get C by itself in the problem. So you subtract 273.15 from that side. Anything you do to one side of the equal sign you have to do to the other side, so also subtract 273.15 from K (1,376.06).
1,376.06 - 273.15 = {1102.91°C}
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Which of the following reactions can also be termed as thermal decomposition reaction?
(a) Combination Reaction
(b) Decomposition Reaction
(c) Displacement reaction
(d) Double displacement reaction
Answer:
Decomposition reaction
Explanation:
When a single reactant is decomposed into two or more products that reaction is called decomposition reaction.
Thermal decomposition usually refers to exothermic reactionA lots of amount of heat is released in thisOption B is correct
Which of the following was not an invention of the Han period?
A. Porcelain
B. Wheelbarrow
C. Paper
D. Silk
Answer:
Silk! All the others were inventions of the Han period.
Explanation:
Silk fabric was invented in Ancient China. Legend has it that the process for making silk cloth was first invented by the wife of the Yellow Emperor, Leizu, around the year 2696 BC.
- profparis
The distance between a carbon atom and an oxygen atom in the co molecule is how far from the carbon atom is the center of mass of the molecule?
Answer:
1.12x10-10 or 0.63 ewan
Explanation:
Correct option is C)
The distance of centre of mass from carbon atom is,
xcm=m1+m2m1x1+m2x2
=12+1612×0+16×1.1
=0.63A˚
Thus, the centre of mass is 0.63A˚ from carbon atom.
The distance between a carbon atom and an oxygen atom in the co molecule is 0.63
What is the distance?Distance is the measurement of the farness of two objects from each other.
The distance between the molecules can be calculated by the given formula
[tex]xcm = m_1+m_2m_1\times 1+m_2 \times 2[/tex]
Putting the values in the equation
[tex]xcm = 12+1612 \times 0+16 \times 1.1 = 0.63 A^\circ[/tex]
Thus, the distance between a carbon atom and an oxygen atom in the co molecule is 0.63
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Direction: Label the effort, resistance, and fulcrum of the following simple machines.
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[tex] \large{ \pink{ \underline{ \purple{ \rm{Rules:}}}}}[/tex]
Correct answer = Brainliest
Wrong answer = Report
Complete answer = Brainliest
Incomplete answer = Report
Based on the question = Brainliest
Not on the question = Report
[tex]••••••••••••••••••••••••••••••••••••••••••••••••[/tex]
Note: If someone answer my question I will give you a big reward!.
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[tex]\color{cyan}{\begin{gathered} \gamma \\ \huge\boxed{ \ddot \smile}\end{gathered}} [/tex]
List three reasons why nonvascular plants are important
Answer:
They are food for some animals. Some animals use them for nesting material. Humans can dry and burn some types of nonvascular plants as a fuel.
Explanation:
Some nonvascular plants produce various nutrients that are passed to the soil and can be used by other plants. Also, nonvascular plants that cover a large surface area help maintain the cohesion of the land by reducing the risk of erosion. Nonvascular plants are also very important to animals.
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Be great
How does this visual help to explain hazards from volcanoes that can hurt people even when they are not erupting?
Answer:
The visual seems to be showcasing an erupting volcano, so I don't believe the two are related.
Explanation:
In addition to not causing damage to the sample, what is another advantage of using a microspectrophotometer to analyze fibers?
The fiber’s spectra can also be polarized.
The sample can be quite small.
The sample can originate from a known source.
The fiber sample’s dye can be extracted.
Another advantage of advantage of using a microspectrophotometer to analyze fibers asides not causing damage to the sample is that the sample can be quite small.
What is a microspectrophotometer?Microspectrophotometry is a biological technique used to measure the absorption or transmission spectrum of a solid or liquid material in either transmitted or reflected light.
Microspectrophotometry can also measure the emission of light by a sample, which is usually small as the micro implies.
One advantage of microspectrophotometry is that the sample does not get damaged. However,
However, another advantage of advantage of using a microspectrophotometer to analyze fibers asides not causing damage to the sample is that the sample can be quite small.
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The volume of a certain gas is 29.3 liters at STP. what would the volume of the same gas at 1.39 atmospheres and -23.0℃?
A. 23 L
B. 37.3 L
C. 19.3 L
D. 22.4 L
Option C) 19.3L is the correct answer.
Hence, the final volume of the gas at the standard atmospheres and temperature is 19.3L.
Given the data in the question;
Initial volume of gas; [tex]V_1 = 29.3L[/tex]At Standard temperature and pressure( STP)
Initial temperature; [tex]T_1 = 273.15K[/tex]Initial pressure; [tex]P_1 = 1.00atm[/tex]Then
Final pressure; [tex]P_2 = 1.39atm[/tex]Final temperature; [tex]T_2 = -23.0^0C = 250.15K[/tex]Final Volume; [tex]V_2 = \ ?[/tex]
Combined gas lawCombined gas law combines both Boyle's Law, Charles's Law, and Gay-Lussac's Law. It states that the ratio of the product of volume and pressure and the absolute temperature of a gas is equal to a constant.
It is expressed as;
[tex]\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2}[/tex]
To determine the new volume of the gas, we substitute our values into the expression above.
[tex]\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2}\\\\P_1V_1T_2 = P_2V_2T_1\\\\1.00atm * 29.3L * 250.15K = 1.39atm * V_2 * 273.15K\\\\7329.395atm.L.K = 379.6785atm.K * V_2\\\\V_2 = \frac{7329.395atm.L.K}{379.6785atm.K} \\\\V_2 = 19.3L[/tex]
Option C) 19.3L is the correct answer.
Hence, the final volume of the gas at the standard atmospheres and temperature is
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How does an electron move from the ground state to an excited state?
Answer:
It goes through a process called absorption. This is when an atom absorbs the energy from its surroundings. The electrons move from the ground state to the excited state because of this process. Once the atoms absorb energy, that affects the inner development when shifting to a new state of being.
Explanation:
The process that is known as absorption is when an atom absorbs energy from its surrounding racing it's energy level causing it to go into an excited state or highly-reactive state. When an atom goes through this process, electrons absorb the energy and raise to higher energy levels, therefore raising the stage of itself. This is how it gets into a excited state.
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Water cannot be used as a fire extinguisher to put out –
A. Burning charcoal
B. Burning cloth
C. Burning oil
D. Burning wood
Answer:
C. Burning oil
Explanation:
Water cannot be used as a fire extinguisher to extinguish the flames of burning oils such as gasoline, petrol, or diesel. Because oil is lighter than water, it floats on top of it and cremates. Furthermore, as the water spreads and carries the oil with it, the fire spreads over a larger area.
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Answer:
Burning oil
Explanation:
oil has lower density than waterAs water has higher density it will sink down and oil will be over it .So it can't control the oil related fireWhat is the molarity of a solution in which 25g NaCl in a 2.00 L solution?
Mass of sodium :- 23 grams
Mass of Chlorine :- 35.5 grams
Mass of NaCl :- 58.5 grams
mass given :- 25 grams
moles :- 0.432 ( given mass/ ionic mass)
[tex]molarity = \frac{moles}{vol} \\ molarity = \frac{0.432}{2} \\ molarity = 0.216 \: mole{l}^{ - 1} or \: molar[/tex]
What term describes a solution in which the dissolved solute is in equilibrium with the undissolved solute?
Saturated solution refer to a solution in which the dissolved solute is in equilibrium with the undissolved solute.
What is a saturated solution?A saturated solution is a chemical solution that contain maximum amount of a solute which is dissolved in the solvent. The addition of anotheg solute will not dissolve in a saturated solution. The amount of solute that can be dissolved in a solvent to form a saturated solution depends on a variety of factors.
Therefore, Saturated solution refer to a solution in which the dissolved solute is in equilibrium with the undissolved solute
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The term that describes a solution in which the dissolved solute is in equilibrium with the undissolved solute is saturated solution.
What is a saturated solution?A saturated solution is one in which there is so much solute that it would not dissolve if there was anymore.
When a saturated solution comes into contact with more solute, the extra solute does not dissolve or deposit.
Thus, the term that describes a solution in which the dissolved solute is in equilibrium with the undissolved solute is saturated solution.
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Explain why the amino group of p-aminobenzoic acid does not participate in the reaction
This is because amino group of p-aminobenzoic acid is an aniline and is less electrophilic than an alkyl amine.
What is an Aniline?This is an aromatic amine which consists of a phenyl group attached to an amino group.
The amino group of p-aminobenzoic acid being an aniline makes it less electrophilic which is why an alkyl amine participates in the reaction instead.
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The amino group of p-aminobenzoic acid does not participate in the reaction as this is an aniline and is less electrophilic than an alkyl amine.
What is an Aniline?Aniline is an aromatic amine molecule in which phenyl group is attached with an amino group.
The amino group present in the p-aminobenzoic acid behave as an aniline as a result of which it becomes less electrophilic in nature and this is the reason why an alkyl amine participates in the reaction instead of the p-aminobenzoic acid.
Hence amino group of p-aminobenzoic acid is less electrophilic in nature and that's why not participate in the reaction.
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What is the minimum quantity of energy that must be possessed by the reactants for a reaction to occur?
Group of answer choices
Collision model
Thermal energy
Catalyst
Activation energy
Answer:
Activation energy :)
Explanation:
The activation energy starts the reaction! Without it, we would not find out the solution!
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A chemical reaction needs to occur at a certain temperature, but one liquid is coming from a reactor at a much hotter temperature. what might be used to cool the liquid? question 3 options: cooling pool steam turbine heat exchanger boiler
The medium that might be used to cool the hot liquid coming from a reactor is : ( C ) Heat exchanger
Function of the heat exchangerHeat exchanger is used for the transfer of heat between liquids to be used in a chemical reaction, It can be used for both Cooling and heating to achieve the desired temperature.
The liquid coming from a reactor which posses a very high temperature will be passed through the heat exchanger so that its temperature will attain the required temperature for the experiment.
Hence we can conclude that The medium that might be used to cool the hot liquid coming from a reactor is Heat exchanger.
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1. Illustrate and describe the sequence in which ten electrons occupy the five
orbitals related to an atom's d sublevel.
327 mL of 3.2 M HCl can be diluted to make mL of 2 M HCI.
Answer:
204,375 mL.
Explanation:
327 mL - 3.2 M
x mL - 2 M
x= (2 M x 327 mL) /3.2 M
x= 204,375 mL.
help Light reflecting from the aluminum coating on a CD ____________ and then interferes.
A. Diffracts
B. Refracts
C. Vibration
D. Reflection
Answer:
Reflection
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A 1.775g sample mixture of potassium hydrogen carbonate is decomposed by heating. if the mass loss is 0.275g what is the percentage of khco3
A 1.775g sample mixture of KHCO₃ is decomposed by heating. if the mass loss is 0.275g, the mass percentage of KHCO₃ is 70.4%.
What is a decomposition reaction?A decomposition reaction can be defined as a chemical reaction in which one reactant breaks down into two or more products.
Step 1: Write the balanced equation for the decomposition of KHCO₃.2 KHCO₃(s) → K₂CO₃(s) + CO₂(g) + H₂O(l)
The mass loss of 0.275 g is due to the gaseous CO₂ that escapes the sample.
Step 2: Calculate the mass of KHCO₃ that formed 0.275 g of CO₂.In the balanced equation, the mass ratio of KHCO₃ to CO₂ is 200.24:44.01.
0.275 g CO₂ × 200.24 g KHCO₃/44.01 g CO₂ = 1.25 g KHCO₃
Step 3: Calculate the mass percentage of KHCO₃ in the sample.There are 1.25 g of KHCO₃ in the 1.775 g sample.
%KHCO₃ = 1.25 g/1.775 g × 100% = 70.4%
A 1.775g sample mixture of KHCO₃ is decomposed by heating. if the mass loss is 0.275g, the mass percentage of KHCO₃ is 70.4%.
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If we have 100ml of water at 0 degrees Celsius and it all freezes, how much energy did the water lose? Using the formula Hfus = Q/n
The amount of heat energy lost by the 100 mL of water when it all freezes is 33400 J
Data obtained from the question Volume of water = 100 mL Heat (Q) =? How to determine mass of water Volume of water = 100 mL Density of water = 1 g/mL Mass of water =?
Mass = Density ×Volume
Mass of water = 1 × 100
Mass of water = 100 g
How to determine the heat Mass of water = 100 gHeat of fusion (ΔHf) = 334 J/g Heat (Q) =?Q = m × ΔHf
Q = 100 × 334
Q = 33400 J
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really need help with this
This is a microscope.
Hope this clears that up for you.
Hi hello this system to have to ask question for answers is not good. I’m poor
Answer:
so what do you need help with?
Explanation:
Answer:
what do you need help with i will try to answer
Explanation:
A world with both liquid water on its surface and carbon dioxide in its atmosphere is unstable because.
Use Figure 2 to describe which type of microscope the scientists should use to study the features of the hairlike organelles. Explain one possible function for these organelles based on where the organelles are located in the cell model in Figure 1
The Figure is not found here but the tiny hairlike organelles are also referred to as cilia.
What are cilia?Cilia are a special type of hairlike organelles capable of covering the surface of cells in many different organisms.
Cilia are found in different eukaryotic organisms ranging from unicellular protists to mammals (epithelial tissues).
The function of cilia is to produce motion (movement) of the cell in which these structures are found.
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