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Unit 3 Changes in Matter Review

Unit 3 Changes in Matter Review

Assessment

Flashcard

Chemistry

8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What do metals tend to do in ionic bonds?

Back

Metals tend to lose valence electrons in ionic bonds.

2.

FLASHCARD QUESTION

Front

What type of change occurs when food is digested in the stomach?

Back

Chemical Change

3.

FLASHCARD QUESTION

Front

What are elements?

Back

Elements are substances that cannot be broken down into simpler substances by chemical means. They are the building blocks of all matter.

4.

FLASHCARD QUESTION

Front

What happens when coffee is poured into a cup of ice?

Back

The ice melting is a physical change because the water may be frozen again.

5.

FLASHCARD QUESTION

Front

What might the pH value of milk, a very weak acid, be?

Back

6.5

6.

FLASHCARD QUESTION

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances.

7.

FLASHCARD QUESTION

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

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