Atoms Elements Compounds 7th Grade Test Review

Atoms Elements Compounds 7th Grade Test Review

Assessment

Flashcard

Chemistry

7th 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 is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

2.

FLASHCARD QUESTION

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

3.

FLASHCARD QUESTION

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together in fixed proportions.

4.

FLASHCARD QUESTION

Front

How many atoms are in a molecule of Al₂O₃?

Back

There are 5 atoms in a molecule of Al₂O₃ (2 Aluminum and 3 Oxygen).

5.

FLASHCARD QUESTION

Front

How many Nitrogen atoms are in (NH₄)₂CrO₄?

Back

There are 2 Nitrogen atoms in (NH₄)₂CrO₄.

6.

FLASHCARD QUESTION

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

7.

FLASHCARD QUESTION

Front

What is the chemical formula for Calcium Carbonate?

Back

The chemical formula for Calcium Carbonate is CaCO₃.

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