Is this equation balanced?
Unit 3: Chemical Reactions and Equations Final Assessment Review

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Science
•
7th Grade
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
Back
Yes
2.
FLASHCARD QUESTION
Front
What kind of matter is salt (NaCl)?
Back
Compound
3.
FLASHCARD QUESTION
Front
Carbon dioxide can be poured out of a bottle. It sinks in the air. This shows it is:
Back
More dense than air
4.
FLASHCARD QUESTION
Front
What does the Law of Conservation of Mass state?
Back
No new atoms can be made or destroyed
5.
FLASHCARD QUESTION
Front
What coefficient should go in the last blank space in order for the equation to be balanced?
Back
2
6.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A process where substances (reactants) transform into new substances (products).
7.
FLASHCARD QUESTION
Front
What is the difference between a compound and a mixture?
Back
A compound is a substance formed when two or more elements chemically bond, while a mixture is a combination of two or more substances that retain their individual properties.
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