Question

which pair of the following molecules has the same number of protons a) C12andBr2 b) CH4andNH3 c) CO2andSO2 d)O2andBr2
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Answer 1

Answer:

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Explanation:

A common noun is the general, non-specific term for a person, place, thing, or idea. Usually, common nouns are not capitalized unless they begin a sentence