Physical and Chemical Changes

Physical and Chemical Changes

Assessment

Flashcard

Chemistry

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

2.

FLASHCARD QUESTION

Front

What is a chemical change?

Back

A chemical change is a process that involves the transformation of one or more substances into different substances, resulting in the formation of new chemical compounds.

3.

FLASHCARD QUESTION

Front

Can a physical change be reversed?

Back

Yes, physical changes can often be reversed, such as freezing and melting.

4.

FLASHCARD QUESTION

Front

Can a chemical change be reversed?

Back

Chemical changes are usually not reversible by simple physical means, as they create new substances.

5.

FLASHCARD QUESTION

Front

What is an example of a physical change?

Back

Melting ice, boiling water, and dissolving sugar in water are examples of physical changes.

6.

FLASHCARD QUESTION

Front

What is an example of a chemical change?

Back

Burning wood, rusting iron, and baking a cake are examples of chemical changes.

7.

FLASHCARD QUESTION

Front

What happens to the molecules during a physical change?

Back

During a physical change, the arrangement of molecules may change, but the molecules themselves remain the same.

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