Chemical Reactions

Chemical Reactions

Assessment

Flashcard

Science

8th Grade

Practice Problem

Hard

NGSS
MS-PS1-5, HS-PS1-5, HS-PS1-4

+4

Standards-aligned

Created by

Wayground Content

FREE Resource

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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) are transformed into new substances (products) through the breaking and forming of chemical bonds.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

2.

FLASHCARD QUESTION

Front

What does it mean for a chemical equation to be balanced?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved.

Tags

NGSS.HS-PS1-7

3.

FLASHCARD QUESTION

Front

What is an inhibitor in a chemical reaction?

Back

A substance that slows down or stops a chemical reaction.

Tags

NGSS.HS-PS1-5

4.

FLASHCARD QUESTION

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed by lowering the activation energy.

Tags

NGSS.HS-PS1-5

5.

FLASHCARD QUESTION

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

6.

FLASHCARD QUESTION

Front

What is an endothermic reaction?

Back

A reaction that absorbs heat from its surroundings, resulting in a temperature decrease in the surroundings.

Tags

NGSS.HS-PS1-4

7.

FLASHCARD QUESTION

Front

What is an exothermic reaction?

Back

A reaction that releases heat to its surroundings, resulting in a temperature increase in the surroundings.

Tags

NGSS.HS-PS1-4

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