Elements, Compounds, and Mixtures

Elements, Compounds, and Mixtures

Assessment

Flashcard

Chemistry

8th Grade

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

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 substance formed when two or more elements are chemically bonded together. Example: Water (H2O) is a compound made of hydrogen and oxygen.

3.

FLASHCARD QUESTION

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically combined. Example: Saltwater is a mixture of salt and water.

4.

FLASHCARD QUESTION

Front

How many elements are in the compound Na2CO3?

Back

3 (Sodium, Carbon, and Oxygen).

5.

FLASHCARD QUESTION

Front

What is a pure substance?

Back

A material made of only one type of particle, which can be either an element or a compound.

6.

FLASHCARD QUESTION

Front

What distinguishes a compound from a mixture?

Back

A compound has a fixed composition and properties, while a mixture can vary in composition and retains the properties of its components.

7.

FLASHCARD QUESTION

Front

What is the chemical formula for table salt?

Back

NaCl (Sodium Chloride), which is a compound formed from sodium and chlorine.

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