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Chemical Reactions

Last updated almost 8 years ago

7 questions

1

1

1

2

4

1

2

Question 7

7.

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

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