Question

write t for true or f for false. if false, rewrite the statement to make it true.
2.16) water is a compound and a molecule.
2.17) all compounds are molecules, but not all molecules are compounds.

Explanation:

• For 2.16: Water (\(H_2O\)) is composed of hydrogen and oxygen atoms chemically bonded. A compound is a substance formed when two or more elements chemically combine. A molecule is a group of atoms bonded together. Since water meets both definitions, the statement is True.
• For 2.17: A compound is a type of molecule that contains at least two different elements. For example, \(O_2\) is a molecule (two oxygen atoms bonded) but not a compound (only one element). So, all compounds are molecules (as they are made of atoms bonded), but not all molecules (like \(O_2\)) are compounds. The statement is True.

Answer:

2.16) T
2.17) T