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Chemical Reactions

Last updated almost 8 years ago

7 questions

1

1

1

2

4

1

2

Question 7

7.

State one way that you could speed up the rate of a chemical reaction.

Question 1

1.

What can you change when balancing a chemical equation?

Subscript

Coefficient

Elements

Catalyst

Question 2

2.

What is an example of an exothermic reaction?

A lightbulb

The sun

A firecracker

Vinegar and baking soda

Question 3

3.

Endothermic reactions release energy stored in chemical bonds.

True

False

Question 4

4.

Balance the chemical equation.

Question 5

5.

Balance the chemical equation.

Question 6

6.

A balanced equation demonstrates...

The law of conservation of energy

There was an exothermic reaction

Energy has neither been created or destroyed

There is the same amount of atoms on both side of the equation

The law of conservation of mass