Question

7 multiple choice 1 point a formula that shows only the types and numbers of atoms combined in a single molecule is called a(n) molecular formula. ionic formula. lewis structure. covalent formula.

Explanation:

To solve this, we analyze each option:

• Molecular formula: Defined as showing the types and numbers of atoms in a single molecule (e.g., \( \text{H}_2\text{O} \) shows 2 H and 1 O atoms).
• Ionic formula: Represents ionic compounds (formula units, not single molecules), so incorrect.
• Lewis structure: Shows bonding and lone pairs, not just atom types/numbers, so incorrect.
• Covalent formula: Not a standard term for this definition; molecular formula is correct.

Answer:

A. molecular formula.