Elements, Compounds, Mixtures PICTURES

Elements, Compounds, Mixtures PICTURES

Assessment

Flashcard

Science

6th - 7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the definition of an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.

2.

FLASHCARD QUESTION

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

3.

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.

4.

FLASHCARD QUESTION

Front

What distinguishes a homogeneous mixture from a heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has a non-uniform composition with distinct phases.

5.

FLASHCARD QUESTION

Front

Can a mixture be classified as a compound? Why or why not?

Back

No, a mixture cannot be classified as a compound because a mixture consists of two or more substances that are not chemically bonded, whereas a compound is made up of elements that are chemically bonded.

6.

FLASHCARD QUESTION

Front

What is an example of a mixture of elements?

Back

An example of a mixture of elements is air, which contains various gases like nitrogen, oxygen, and carbon dioxide.

7.

FLASHCARD QUESTION

Front

What is an example of a mixture of compounds?

Back

An example of a mixture of compounds is saltwater, which contains dissolved sodium chloride (a compound) in water (another compound).

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