Elements, Counting Atoms and Balancing Equations

Front

What is the chemical symbol for Potassium?

Back

K

Front

What can be placed to the left of a formula of a substance to balance an equation?

Back

Coefficient

Front

How many Magnesium atoms are in 10MgCl₂?

Back

10

Front

How many Nitrogen atoms are in (NH₄)₂CrO₄?

Back

2

Front

What is the product of the reaction 2H₂ + O₂ ----> ?

Back

2H₂O

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 does it mean to balance a chemical equation?

Back

To ensure that the number of atoms of each element is the same on both sides of the equation.

Front

What is the purpose of coefficients in a chemical equation?

Back

To indicate the number of molecules or moles of a substance involved in the reaction.

Front

What is the chemical formula for water?

Back

H₂O

Front

How many oxygen atoms are in the formula C₆H₁₂O₆?

Back

6