complete the sentence with the word \element\ or \compound.\ o is a(n) and h2o2 is a(n).
complete the sentence with the word \element\ or \compound.\ o is a(n) and h2o2 is a(n).
Answer
Brief Explanations:
An element is a pure substance made of only one type of atom. Oxygen (O) is an element as it consists of only oxygen - atoms. A compound is a pure substance made up of two or more different types of elements chemically combined. Hydrogen peroxide ($H_2O_2$) is composed of hydrogen and oxygen atoms chemically bonded, so it is a compound.
Answer:
O is a(n) element and $H_2O_2$ is a(n) compound.