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2nd Semester Test

Authored by Brandon McCrory

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2nd Semester Test
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The smaller numbers in a chemical equation are called

Subscripts
coefficients
products
reactants

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The bigger numbers are called

subscripts
coefficients
products
reactants

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The chemicals after the reaction arrow in the equation are the

subscripts
Coefficients
Products
Reactants

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Law of Conservation of matter states that matter can be created or destroyed

True
False

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When you have a single reactant that breaks down to form 2 or more products, that is a ____________ reaction.

Synthesis
Decomposition
single replacement
Combustion

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In balancing a chemical equation, which of the following are you allowed to do?

change subscripts
write coefficients
combustion
add new substances

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which coefficients correctly balance the formula equation below? KClO3(s) → KCl(s) + O2(g)

1,1,1,
1,1,3
2,2,3
2,1,1

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