CHEMISTRY HIGH SCHOOL

Given the potential energy diagram for areaction:
Which intervals are affected by the addition of a
catalyst?
(1) 1 and 2
(2) 1 and 3
(3) 2 and 4
(4) 3 and 4
Given the potential energy diagram for a reaction: Which intervals - 1

Answers

Answer 1
Answer:

Intervals 1 and 3 are most affected by the addition of catalyst. Option 2 is correct.

What are catalysts?

Catalysts are those compounds that reduce the activation energy for the reaction to occur, hence increasing the rate of reaction.

Activation energy is the energy that is required to start a reaction. Here, 1 represents the activation energy and 3 represents activation energy without catalyst.

Therefore, intervals 1 and 3 are most affected by the addition of catalyst.

Learn more about Catalyst:

brainly.com/question/490644
Answer 2
Answer:

Answer: Option (2) is the correct answer.

Explanation:

The minimum amount of energy required by the reactants to undergo a reaction is known as activation energy.

And when we add a catalyst into a reaction then it leads to a decrease in activation energy. As a result, product formation becomes faster.

Therefore, we can conclude that intervals 1 and 3 are affected by the addition of a  catalyst.

Related Questions

The saturation index for a pool measures the balance between the acid level and the amount of minerals in pool water. Balanced water has an index value of 0. Water is highly corrosive or highly scale forming if the absolute deviation of the index value from 0 is greater than 0.5. Find the index values for which pool water is highly corrosive or highly scale forming.
HELP DUE TOMMOROW! FAILING CLASS!!! When it would be appropriate to use Radiocarbon dating, Rubidium-Strontium dating, Uranium-Lead dating, and Potassium-Argon dating. Include if the types of dating are used for organic or inorganic things and the time range they are useful for.
Mintu wants to increase the heat transfer between a metal iron and another piece of metal he wants to shape. He decides to increase the time the two metals are in contact, use a larger metal iron, and use a new metal material with a higher specific heat. Where is Mintu's error?A:Mintu should have decreased the size of the metal ironB:Mintu should have decreased the time he touches the two metalsC:Mintu should have chosen a material with a lower specific heatD:Mintu should have chosen a material the same temperature as the iron.
Why did Rutherford conclude that the atom was mostly empty space?
All of the following are part of the digestive system except the __________.Select one of the options below as your answer:a. stomachb. esophagusc. intestinesd. heart

True or False, A Bronsted-Lowry acid is a proton acceptor, while a Bronsted-Lowry base is a proton donor.

Answers

This statement is false. A Bronsted-Lowry acid is a proton DONOR and the Bronsted-Lowry base is a proton ACCEPTOR, Based on the Bronsted-Lowry definition, acids and bases are being classified whether they can donate or accept and proton. Bronsted-Lowry acid is a PROTON DONOR because it donates a proton to H2O and for the Bronsted-Lowry base, it basically accepts a proton from acids such as HCl. 

What is the percent by mass of oxygen in propanal, CH3CH2CHO?(1) 10.0% (3) 38.1%(2) 27.6% (4) 62.1%

Answers

Answer : The percent by mass of oxygen in propanal is, 27.58 %

Solution : Given,

Molar mass of carbon = 12 g/mole

Molar mass of hydrogen = 1 g/mole

Molar mass of oxygen = 16 g/mole

First we have to calculate the molar mass of propanal, CH_3CH_2CHO

Molar mass of propanal, CH_3CH_2CHO = 3(12)+6(1)+16=58g/mole

Now we have to calculate the percent by mass of oxygen in propanal.

\text{Percent by mass of oxygen}=\frac{\text{Mass of oxygen}}{\text{Mass of propanal}}* 100=(16)/(58)* 100=27.58\%

Therefore, the percent by mass of oxygen in propanal is, 27.58 %
17.6% oxygen
% mass = molar mass of part over molar mass of whole,
molar mass of oxygen is 16
molar mass of carbon is 12
molar mass of hydrogen is 1
so (16) / (16+12*6+3) = 16/91 = 17.58%

The sum of pH and pOH for any aqueous solution equals

Answers

pH is a notion that expresses the concentration of hydrogen in a solution while pOH expresses the concentration of hydroxide in a solution. The sum of pH and pOH in a solution is 14.

Answer: 14

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

Acids have pH ranging from 1 to 6.9, bases have pH ranging from 7.1 to 14 and neutral solutions have pH equal to 7.

pH=-\log [H^+]

pOH=-\log[OH^-]

pH+pOH=14

Thus the sum of pH and pOH is 14.

A solution is highly concentrated if there is:a large volume of solution

a large amount of solvent and a small amount of solute

a large amount of solute and a small amount of solvent

a high density value for the solution

Answers

TO be saturated you need an amount of solvent that will not dissolve anymore into the solution.  So, the best answer from the list is C

How would I go about solving this problem? Sodium bicarbonate reacts with sulfuric acid to form sodium sulfate, carbon dioxide, and water. Calculate the mass od sodium bicarbonate necessary to produce 1.75 g of carbon dioxide gas.

Answers

The first thing you need to do with problem of this kind is to write the chemical equation. This would help you in calculations later. First, convert how many moles are there in 1.75g of carbon dioxide. Then, from the chemical equation you will know how many moles of sodium bicarbonate formed with 1 mole of carbon dioxide. Then convert the moles of sodium bicarbonate to grams using the molecular weight of the compound. You now have your answer. 

How does the hydrogen atom produce light

Answers

when energy is put into an atom, the electrons can use the energy to go to a higher energy state (n value) which is called an exited state.  when the electron goes back down to where it started (called the ground state) it releases the energy it gained in the form of a photon which is why it produces light.  
A common way to get hydrogen gas to produce light is by passing an electric current through the sample.
Other Questions
The equation below shows the decomposition of lead nitrate. How many molecules of PbO are produced when 11.5 g NO2 is formed?2Pb(NO3 )2 (s) → 2PbO(s) + 4NO2 (g) + O2 (g)
if 1200 j of heat were absorbed by a 25 g block of iron, by how much would the temperature of the iron increase?
Calculate the mass number of an atom that has 92 protons and 108 neutrons
What does the pH of a solution have to be in order to be a base?