volume_mute

Distinguish between an element and a compound. About how many of each are known?

publish date: 2022/07/28 07:46:00 GMT+10

volume_mute

An is a fundamental chemical part of a . A is a combination of elements that acts as a different

Please drag and drop the selected option in the right place or type it instead
element
substance
compound

Correct Answer

(1) element
(2) substance
(3) compound
(4) substance

Explanation

Note:
There are about 115 known elements
There are over 50 million known substances

Reference

Beginning Chemistry v. 1.0

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