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Controlling Chemical Reactions

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Last updated over 2 years ago
21 questions
Read each question and choose the choice that best answers each question.
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Question 1
1.

This image above best represents what type of chemical reaction? Explain your answer.

Question 2
2.

What does activation energy refer to in a chemical reaction?

Question 3
3.

How does a catalyst affect the activation energy of a reaction?

Question 4
4.
Draggable itemarrow_right_altCorresponding Item
C2H4 + O2 --> CO2 + H20
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Combustion
NABR + HPO4 --> NA3PO4 + HBR
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Double Displacement
PBSO4 --> PBSO3 + O2
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Decomposition
MG + FE2O3 --> FE + MGO
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Single Replacement
Question 5
5.

What happens if the activation energy in a chemical reaction is not reached?

Question 6
6.

Which side of a chemical equation are the reactants?

Question 7
7.

What type of reaction is shown below?
CA(OH)2 + AL2(SO4)3 --> CASO4 + AL(OH)3

Question 8
8.

Why is it important to balance a chemical equation?

Question 9
9.

What is this graph displaying?

Question 10
10.

Which accurately describes the function of a catalyst in a chemical reaction?

Question 11
11.

What would likely happen if you remove a catalyst from a chemical reaction?

Question 12
12.

Explain the graph above to me. (Including het vocabulary terms catalyst, activation energy, exothermic/endothermic)

Question 13
13.

Are catalysts consumed in the chemical reactions they facilitate?

Question 14
14.

If you change the concentration of a substance, that means you are adding more of that substance to the same given volume. This will make the reaction slow down.

Question 15
15.

In an endothermic reaction, the products have less energy than the reactants because energy is released.

Question 16
16.

All reactions must have enough energy to start the reaction.

Question 17
17.

Increasing the surface area of the reactants will decrease the rate of the reaction.

Question 18
18.

Heat gives the reactant particles more energy. You can increase the surface area and concentration or also use a catalyst it speed up the reaction

Question 19
19.

Match the vocabulary terms to the correct definition.

Draggable itemarrow_right_altCorresponding Item
Inhibitor
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An increase in this will typically increase the rate of reaction. It is measured by hot hot or cold a substance is.
Activation Energy
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A material is used to decrease the speed of a chemical reaction.
Endothermic
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The amount of substance in a given volume.
Catalyst
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Lowers activation energy for the reaction to begin
Exothermic
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The minimum amount of energy needed for a reaction to take place.
Surface Area
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This reaction will release heat into the surrounding area.
Temperture
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This reaction will absorb heat from the surrounding area.
Concentration
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The area of the chemical substances used in a chemical reaction.
Question 20
20.

When we increase the amount of concentration of a substance, how are we affecting the rate of reaction?

Question 21
21.

The human body has chemical reactions happening all the time. If we increase this in your saliva the food in your mouth will break down faster.