Question

which of the following is used to indicate the number of each type of atom in the naming of a covalent molecule?
a. a prefix
b. a suffix
c. a roman numeral
d. a subscript

Explanation:

Prefixes like mono - (1), di - (2), tri - (3) etc. are used in naming covalent molecules to show the number of each type of atom. Suffixes are for functional groups or indicating the type of compound end - ing. Roman numerals are for indicating oxidation states in ionic compounds with transition metals. Subscripts are in chemical formulas, not in naming.

Answer:

A. A prefix