Chemical Formulas and Atom Counts Review

Front

What is the formula for sulfur trioxide?

Back

SO₃

Front

How many atoms of oxygen are in a molecule of sulfur trioxide (SO₃)?

Back

3

Front

Ionic bonds form between metals and which type of element?

Back

Nonmetals

Front

What is the total number of atoms in the formula Pb(NO₃)₂?

Back

9

Front

What is the charge on the iron ion in the salt Fe₂O₃?

Back

3+

Front

In the formula for calcium chloride (CaCl₂), how many atoms of calcium are present?

Back

1

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in one molecule.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the chemical formula for water?

Back

H₂O

Front

How many total atoms are in a molecule of glucose (C₆H₁₂O₆)?

Back

24