What are some common elements and compounds?

1 Answer
Al E.
Jun 25, 2017

#H#, #He#, #C#, #O#, #N# all very common in nature.

Most common compounds are #O_2#, #CO_2# and #H_2O# probably.

Explanation:

Inorganically, I'm sure there are more, but this question is extremely broad.

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