Question 6

Water is a compound.

A water molecule consists of two hydrogen atoms bonded to one oxygen atom, which classifies it as a compound due to the chemical combination of different elements.

A) Compound

This option is correct because a compound is defined as a substance formed when two or more different elements chemically bond together. In the case of water, the hydrogen and oxygen atoms are chemically bonded, resulting in a distinct substance with unique properties.

B) Mixture

This option is incorrect because a mixture is a combination of two or more substances that are not chemically bonded. Water is not a mixture; it is a pure compound with a specific chemical formula (H2O).

C) Isotope

This option is incorrect because an isotope refers to variants of a chemical element that have the same number of protons but different numbers of neutrons. Water is not classified as an isotope; it is a compound comprised of hydrogen and oxygen.

D) Element

This option is incorrect because an element is a pure substance that consists of only one type of atom. Water is made up of two different elements (hydrogen and oxygen) and therefore cannot be classified as an element.

Conclusion

Water is definitively classified as a compound due to its formation from the chemical bonding of hydrogen and oxygen atoms. The other options fail to accurately describe water, as they either refer to combinations of substances or single types of atoms, which do not apply to the structure of water.