Naming & Writing Chemical Formulas 2025

Front

What is the chemical formula for Tetrasulfur pentoxide?

Back

S₄O₅

Front

What is the formula for manganese(III) oxide?

Back

Mn₂O₃

Front

What is the formula for zinc (I) fluoride?

Back

ZnF₂

Front

What is the formula of calcium phosphate?

Back

Ca₃(PO₄)₂

Front

What is the correct name of Cu₃N₂?

Back

copper (II) nitride

Front

Define a chemical formula.

Back

A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound.

Front

What does the prefix 'tetra-' indicate in chemical nomenclature?

Back

The prefix 'tetra-' indicates that there are four atoms of a particular element in a compound.

Front

What does the Roman numeral in manganese(III) oxide signify?

Back

The Roman numeral indicates the oxidation state of manganese in the compound, which is +3.

Front

How do you determine the formula for a binary ionic compound?

Back

The formula is determined by balancing the charges of the cations and anions to achieve a neutral compound.

Front

What is the significance of parentheses in chemical formulas like Ca₃(PO₄)₂?

Back

Parentheses indicate that the enclosed group of atoms is a polyatomic ion, and the subscript outside applies to the entire group.