How many of the following are pure substances? (Check all that apply.)
A) water
B) air
C) carbon
D) brass
E)gold
F) ammonia

Name: How many of the following are pure substances? (Check all that apply.) A) water B) air C) carbon D) brass E)gold F) ammonia
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Question

Quizplus · Accepted Answer

Water, carbon, gold, and ammonia are all pure substances because they are made up of only one type of molecule or atom. Air and brass are both mixtures of different substances, so they are not pure substances.

How Many of the Following Are Pure Substances? (Check All