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- 1. Multiple Choice
In science, a law is:
A rule governing what you are permitted to do.
A generalization about how the physical universe works.
A legal document that describes a rule of conduct.
A statute enacted by a legislative body.
- 2. Multiple Choice
What is true of a substance with a lot of mass?
It contains a lot of matter
It has a large volume
It has a high density
It has a low frequency
- 3. Multiple Choice
The law of conservation of mass says substances can neither be _______ nor ___________.
Built; torn down
Blended together; separated
Created; destroyed
Condensed; extracted
- 4. Multiple Choice
How is weight different from mass?
Weight changes depending on gravity; mass stays constant throughout the universe.
Weight is measured in grams; mass is measured in newtons.
Weight can be converted to energy; mass cannot.
Weight is measured with a scale; mass is measured with a triple-beam balance.
- 5. Multiple Choice
Sodium and chlorine combine to form sodium chloride, or table salt. Sodium and chlorine are:
Producers
Products
Reactionaries
Reactants
- 6. Multiple Choice
When sodium and chlorine combine to form sodium chloride, sodium chloride is the:
Originator
Reactant
Product
Produce
- 7. Multiple Choice
4 grams of hydrogen and 32 grams of oxygen will combine to form:
36 grams of water
28 grams of hydroxide
32 grams of oxygen
36 grams of deuterium
- 8. Multiple Choice
In a chemical reaction, 4 grams of sodium must combine with how many grams of chlorine to produce 10 grams of table salt?
4 grams
6 grams
8 grams
10 grams
- 9. Multiple Choice
What was Antoine Lavoisier's contribution to the law of conservation of mass?
He was the first person to think of it
He was the first person to propose it in a scientific way
He came up with a widely-read, precise description
He was the first person to perform a chemical reaction
- 10. Multiple Choice
Which of the following describes a chemical reaction?
Oxygen interacts with iron to form rust
Ice melts into water
Carbon dioxide freezes to make dry ice
Rocks split apart over many years due to weathering
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