Balancing Chemical Equations Practice

Front

Law of Conservation of Mass

Back

Matter cannot be gained or lost in a chemical reaction.

Front

Total number of atoms in 5Na₃PO₄

Back

40

Front

How many Mn atoms are found in the following compound?
3Cr(MnO₄)₆

Back

18

Front

Which of the following equations are correctly balanced? Options: 12CO₂ +H₂O --> C₆H₁₂O₆ + O₂, CO₂ + 9H₂O --> C₆H₁₂O₆ + O₂, CO₂ + H₂O --> 3C₆H₁₂O₆ + O₂, 6CO₂ + 6H₂O --> C₆H₁₂O₆ + 6O₂

Back

6CO₂ + 6H₂O --> C₆H₁₂O₆ + 6O₂

Front

Balance this equation: _Al +_HCl --> _H₂ +_AlCl₃

Back

2,6,3,2

Front

The numbers needed to balance the equation are:

Back

2, 7, 6, 4

Front

Balance the equation: ___, ___, ___, ___

Back

2, 3, 1, 3

Front

Balance the equation with the correct numbers from the options: 2, 7, 6, 4, 2, 1, 3, 2, 3, 1, 1, 3, 2, 3, 1, 3.

Back

3, 1, 1, 3

Front

Balance the equation with the correct numbers from the options: 2, 7, 6, 4, 2, 1, 1, 2, 3, 1, 1, 3, 1, 6, 2, 6.

Back

1, 6, 2, 6

Front

Numbers needed to balance the equation:

Back

2, 3, 1, 6