Question

several elements and compounds are given below. check all that apply. part 1 of 2 select the compound(s).
□h₂o
□o₂
□ch₄
□i₂

Explanation:

A compound is a substance made up of two or more different types of elements chemically combined. $H_2O$ is made of hydrogen and oxygen, $CH_4$ is made of carbon and hydrogen. $O_2$ and $I_2$ are made of only one - type of element, so they are elements not compounds.

Answer:

$H_2O$, $CH_4$