Which of the following is an element?
A) water
B) methane
C) hydrogen
D) carbon dioxide

Name: Which of the following is an element? A) water B) methane C) hydrogen D) carbon dioxide
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Question

Quizplus · Accepted Answer

Hydrogen is the only choice that represents a single, pure element. Water and carbon dioxide are both compounds made up of multiple elements (hydrogen and oxygen for water, carbon and oxygen for carbon dioxide), and methane is a compound made up of carbon and hydrogen.

Which of the Following Is an Element