A compound<span> is a </span>molecule<span> that contains at least two different elements. </span>All compounds<span> are </span>molecules<span> but not </span>all molecules<span> are </span>compounds<span>. </span>Molecularhydrogen (H2<span>), </span>molecular<span> oxygen (O</span>2<span>) and </span>molecular<span> nitrogen (N</span>2) are notcompounds<span> because each is composed of a single element.</span>
Chemistry is a major part of science that discusses the elements and basic substances of forms of life. It helps investigate how things grow and change and how they react over time.
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uhh what even is this. 0_0
Answer:
the volume of the gas doubles whatever it is
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