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Physical and Chemical Changes; Law of Conservation of Mass

Physical and Chemical Changes; Law of Conservation of Mass

Assessment

Flashcard

Science, Chemistry

8th Grade

Practice Problem

Easy

Created by

Rania Fenni

Used 1+ times

FREE Resource

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20 questions

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1.

FLASHCARD QUESTION

Front

Mixing baking soda and vinegar produces bubbles of carbon dioxide. True statement:

Back

A chemical change occurred due to the release of a new gas.

2.

FLASHCARD QUESTION

Front

Total mass of products < reactants after a reaction because:

Back

Gases were released into the air.

3.

FLASHCARD QUESTION

Front

Food coloring mixed in water: true statement?

Back

No chemical change occurred; no new substance formed.

4.

FLASHCARD QUESTION

Front

Plants create food via photosynthesis, starting with 6 carbon atoms. How many carbon atoms remain after the reaction?

Back

6 carbon atoms

5.

FLASHCARD QUESTION

Front

Chemical property:

Back

Reactivity with air

6.

FLASHCARD QUESTION

Front

Total matter before and after a reaction remains constant according to:

Back

The Law of Conservation of Mass

7.

FLASHCARD QUESTION

Front

Precipitate

Back

A solid formed by combining two liquids.

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