Answer: Air nitrogen. Elements and compounds are the two types of pure substances. Examples of common elements include carbon, nitrogen and hydrogen. They consist of one type of atom and cannot break down into something else. ... Compounds such as water, salt and sugar are also pure substances.
Step-by-step explanation:
Answer:
A Pure substance cant be broken down in any way. Nitrogen cant be broken down any further
Air is a mixture of gasses
Juice and be reduced to sugars
Tap water can be boiled into vapor
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