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

An (1) is a fundamental chemical part of a (2). A (3) is a combination of elements that acts as a different (4)

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

Reference

Beginning Chemistry v. 1.0

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