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Elements and Compounds

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Questions and Answers

Which of the following is an example of an element?

Oxygen (correct)

Water

Carbon dioxide

Table salt

What is a compound?

A substance that cannot be reduced to a simpler substance

A substance that can be separated by physical means

A combination of elements and compounds

A chemical combination of elements (correct)

Which of the following is an example of a mixture?

Air (correct)

Silver

Gold

Iron

How many known elements are there?

<p>Over 100</p> Signup and view all the answers

What is the difference between separating a compound and separating a mixture?

<p>A compound can be separated by chemical means, while a mixture cannot</p> Signup and view all the answers

Elements and Compounds

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Questions and Answers

Which of the following is an example of an element?

What is a compound?

Which of the following is an example of a mixture?

How many known elements are there?

What is the difference between separating a compound and separating a mixture?

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