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Law of Conservation of Mass Practice Teacher Key
(continued)
2. 2KNO3 + H2CO3 --> ____ K2CO3 + _____ HNO3
Reactants (left side) Products (right side)
Element # of total atoms Element # of total atoms
Potassium 2
Nitrogen 2
Hydrogen 2
Carbon 1
Oxygen 9
Potassium 2
Nitrogen 2
Hydrogen 2
Carbon 1
Oxygen 9
1 2
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