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Which of the following are compounds?

I) H₂O
II) O₂
III) CH₄

User Myusko
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1 Answer

4 votes

Final answer:

H₂O (water) and CH₄ (methane) are compounds, while O₂ is a molecule of an element, not a compound.

Step-by-step explanation:

The compounds among the given options are I) H₂O and III) CH₄. A compound consists of two or more different elements chemically bonded together. Water, H₂O, is a compound composed of hydrogen and oxygen. Likewise, methane, CH₄, is a compound consisting of carbon bonded to hydrogen atoms. Option II) O₂, however, is not a compound but a molecule of an element, as it consists of two oxygen atoms bonded together and no other elements are present.

User Karren
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