Chemical Reactions Quiz
Authored by Christina Celine Sutherland
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a chemical reaction?
A change in shape
Atoms rearranging to form new substances
A substance freezing
Atoms disappearing
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is always true during a chemical reaction?
New atoms are created
The number of atoms increases
Atoms are rearranged
Only one product is formed
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the starting substances in a chemical reaction called?
Molecules
Products
Reactants
Mixtures
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the substances formed after a chemical reaction called?
Atoms
Reactants
Bonds
Products
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a chemical reaction?
Boiling water
Melting chocolate
Burning wood
Breaking a pencil
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of change makes a new substance?
Physical
Reversible
Chemical
Mechanical
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the law of conservation of mass say?
Mass increases in every reaction
Mass is always lost
Mass stays the same
Mass doubles
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