Concept 1.5 Test: Chemical Reactions

Concept 1.5 Test: Chemical Reactions

Assessment

Flashcard

Chemistry

6th - 9th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What does the Law of Conservation of Mass state?

Back

Atoms cannot be gained or lost in a chemical reaction.

2.

FLASHCARD QUESTION

Front

What are the substances on the left part of a chemical equation called?

Back

Reactants

3.

FLASHCARD QUESTION

Front

The starting materials in a chemical reaction are called ___________ .

Back

reactants

4.

FLASHCARD QUESTION

Front

How do chemical reactions turn substances into new substances?

Back

The bonds break, the atoms rearrange, forming new bonds and new molecules.

5.

FLASHCARD QUESTION

Front

If you combine two substances in a beaker at room temperature and the beaker feels cold to the touch, it means that the substances:

Back

have undergone an endothermic reaction.

6.

FLASHCARD QUESTION

Front

What are the substances formed as a result of a chemical reaction called?

Back

Products

7.

FLASHCARD QUESTION

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

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