Counting Atoms REVIEW

Front

How many Sulfur's are in Al₂(SO₄)₃?

Back

3

Front

How many more atoms of Oxygen than Magnesium are in MgSO₄?

Back

3

Front

A ______ is a number written in front of a chemical formula.

Back

Coefficient

Front

How many O's are in Al₂(SO₄)₃?

Back

12

Front

What elements are represented in the chemical formula Fe₂O₃?

Back

Iron, Oxygen

Front

What is a subscript in a chemical formula?

Back

A number written below and to the right of a chemical symbol indicating the number of atoms of that element in a molecule.

Front

What is the purpose of a coefficient in a chemical equation?

Back

To indicate the number of molecules or moles of a substance.

Front

In the formula CaCl₂, how many Chlorine atoms are present?

Back

2

Front

What is the total number of atoms in the formula C₆H₁₂O₆?

Back

24 (6 Carbon, 12 Hydrogen, 6 Oxygen)

Front

How many Magnesium atoms are in Mg(NO₃)₂?

Back

1