Balancing Equations

Front

What does the Law of Conservation of Mass state?

Back

Matter cannot be created or destroyed in a chemical reaction.

Front

Balance the equation: __H2 + __Cl2 --> __HCl

Back

H2 + Cl2 --> 2HCl

Front

What type of reaction involves the breaking down of a substance into simpler substances?

Back

Decomposition Reaction

Front

In the equation, 2Mg + O2 --> 2MgO, which are the reactants?

Back

Mg and O2

Front

Is this equation balanced? 2H2 + O2 --> 2H2O

Back

yes

Front

What is a synthesis reaction?

Back

A reaction where two or more substances combine to form a new compound.

Front

What is a single displacement reaction?

Back

A reaction where one element replaces another in a compound.

Front

What is a double displacement reaction?

Back

A reaction where two compounds exchange ions to form two new compounds.

Front

What is the purpose of balancing chemical equations?

Back

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

Front

What does it mean for an equation to be balanced?

Back

The number of atoms of each element is equal on both sides of the equation.