Element, compound, or mixture

Element, compound, or mixture

Assessment

Flashcard

Chemistry, Science

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 is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include hydrogen (H), oxygen (O), and gold (Au).

2.

FLASHCARD QUESTION

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together. Examples include water (H2O) and sodium chloride (NaCl).

3.

FLASHCARD QUESTION

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded. Mixtures can be homogeneous (uniform composition) or heterogeneous (distinct components).

4.

FLASHCARD QUESTION

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the composition is uniform throughout. An example is saltwater.

5.

FLASHCARD QUESTION

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the composition is not uniform throughout. An example is a salad.

6.

FLASHCARD QUESTION

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

7.

FLASHCARD QUESTION

Front

What is the chemical formula for sodium chloride?

Back

The chemical formula for sodium chloride is NaCl.

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