Chemical Formulas

Front

What is a chemical formula?

Back

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

Front

What does the subscript in a chemical formula indicate?

Back

The subscript in a chemical formula indicates the number of atoms of the element present in the molecule.

Front

What is the chemical formula for Tetrasulfur pentoxide?

Back

S₄O₅

Front

What is the correct name for Cu₃N₂?

Back

copper (II) nitride

Front

What is the name of S₂Br₆?

Back

disulfur hexabromide

Front

What is a binary acid?

Back

A binary acid is an acid that consists of two elements, typically hydrogen and a nonmetal.

Front

Which of the following acids is NOT binary: HCl, HF, H₂S, H₂SO₄?

Back

H₂SO₄ is not a binary acid.

Front

What is the chemical formula for tin (IV) oxide?

Back

SnO₂

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed by the transfer of electrons between atoms, while covalent compounds are formed by the sharing of electrons.

Front

What is the significance of parentheses in chemical formulas?

Back

Parentheses in chemical formulas indicate that the enclosed group of atoms behaves as a single unit.