Chemical Reactions Review

Chemical Reactions Review

Assessment

Flashcard

Science

6th - 8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a chemical reaction?

Back

A process where substances (reactants) transform into new substances (products) with different properties.

2.

FLASHCARD QUESTION

Front

What is the law of conservation of mass?

Back

In a chemical reaction, the mass of the reactants equals the mass of the products.

3.

FLASHCARD QUESTION

Front

What happens to the color of the Statue of Liberty over time?

Back

It changed from bronze to green due to a chemical reaction called oxidation.

4.

FLASHCARD QUESTION

Front

What is photosynthesis?

Back

A chemical reaction where plants use sunlight, carbon dioxide, and water to produce sugar and oxygen.

5.

FLASHCARD QUESTION

Front

What is a precipitate?

Back

A solid that forms when two liquids react and combine.

6.

FLASHCARD QUESTION

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.

7.

FLASHCARD QUESTION

Front

What are reactants in a chemical reaction?

Back

The starting substances that undergo change during a chemical reaction.

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