Types of Reactions and Balancing

Front

What is a Single Replacement Reaction?

Back

A reaction where one element replaces another in a compound. Example: Cl2 + 2KI → I2 + 2KCl.

Front

How do you balance a chemical equation?

Back

By ensuring the number of atoms for each element is the same on both sides of the equation.

Front

What is a Double Replacement Reaction?

Back

A reaction where two compounds exchange ions to form two new compounds. Example: AgF + CaCl2 → AgCl + CaF2.

Front

What is a Decomposition Reaction?

Back

A reaction where a single compound breaks down into two or more simpler products. Example: 2H2O → 2H2 + O2.

Front

What is a Synthesis Reaction?

Back

A reaction where two or more reactants combine to form a single product. Example: 2H2 + O2 → 2H2O.

Front

What is a precipitate in a chemical reaction?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

Identify the precipitate in the reaction: CuCl2(aq) + NaOH(aq) → Cu(OH)2(s) + NaCl(aq).

Back

Cu(OH)2(s) is the precipitate.

Front

How many atoms of aluminum are in the equation: 4Al + 3O2 → 2Al2O3?

Back

There are 4 atoms of aluminum on each side.

Front

What is the general form of a chemical equation?

Back

Reactants on the left side, products on the right side, separated by an arrow (→).

Front

What is the Law of Conservation of Mass?

Back

Mass is neither created nor destroyed in a chemical reaction; it is conserved.