Chemical Reactions

Chemical Reactions

Assessment

Flashcard

Science

7th Grade

Hard

Created by

Wayground Content

FREE Resource

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22 questions

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1.

FLASHCARD QUESTION

Front

How is a chemical change different from a physical change?

Back

A new substance is formed in a chemical change, whereas in a physical change, no new substance is formed.

2.

FLASHCARD QUESTION

Front

How many Carbons are present on the reactant side?

Back

1

3.

FLASHCARD QUESTION

Front

How many Hydrogens are on the product side of this chemical equation?

Back

4

4.

FLASHCARD QUESTION

Front

How many Oxygens are on the product side of this chemical equation?

Back

4

5.

FLASHCARD QUESTION

Front

Is this chemical equation balanced? Why or why not?

Back

No, none of the elements (carbon, hydrogen, or oxygen) are the same amount on both the reactant and product side.

6.

FLASHCARD QUESTION

Front

In the reaction methane + oxygen turns into carbon dioxide + water, the methane and oxygen are called _______________.

Back

reactants

7.

FLASHCARD QUESTION

Front

A change in the shape of an object is an example of _________________.

Back

a physical change

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