Law of Conservation of Mass

Law of Conservation of Mass

Assessment

Flashcard

Science

7th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the Law of Conservation of Mass?

Back

Mass is never created or destroyed.

2.

FLASHCARD QUESTION

Front

If Bob puts 200 grams of ice into a pitcher with 900 grams of water, how many grams of water does he have after the ice melts?

Back

1,100 g

3.

FLASHCARD QUESTION

Front

Matter cannot be created nor destroyed; it can only be...

Back

Transformed, changed.

4.

FLASHCARD QUESTION

Front

In a reaction A + B --> C, if reactant A has 5g and product C has 9g, how many grams does reactant B have?

Back

4g

5.

FLASHCARD QUESTION

Front

In the reaction AB --> A + B, if reactant AB has 12g and product B has 5g, how many grams should product A have?

Back

7g

6.

FLASHCARD QUESTION

Front

What does the Law of Conservation of Mass imply about chemical reactions?

Back

The total mass of reactants equals the total mass of products.

7.

FLASHCARD QUESTION

Front

What happens to the mass of substances during a physical change?

Back

The mass remains the same.

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