Will give Some substances are made of only one kind of atom. Other substances are made of more than one kind of atom. How are the properties of these two types of substances different?

Elements (one kind of atom) cannot be broken down by chemical means, as they are at its purest form

Mixtures and Compounds however, can be broken down to multiple individual elements

answer; i believe the correct answer is (c) /// is a homogeneous mixture of gaseous substance nitrogen,oxygen and smaller amounts of other substancesmixtures can be either ( homogeneous or heterogeneous)plz check first good luck

the answer to your question is c.

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