Double Replacement Reactions

Front

What is a double replacement reaction?

Back

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

Front

What is a precipitate?

Back

A solid formed from a double replacement reaction.

Front

What are the products of the reaction CuCl2 + H2S?

Back

CuS(s) + HCl(aq)

Front

Which ionic compound forms a precipitate: NaCl, Pb(NO3)2, CuSO4, or Al(OH)3?

Back

Al(OH)3.

Front

Is KBr (potassium bromide) soluble or insoluble?

Back

Soluble.

Front

What rules can help determine if a substance will be a precipitate?

Back

The solubility rules.

Front

What is the general form of a double replacement reaction?

Back

AB + CD → AD + CB, where A and C are cations and B and D are anions.

Front

What is the role of solubility rules in double replacement reactions?

Back

They help predict whether a precipitate will form.

Front

What happens to the ions in a double replacement reaction?

Back

The cations and anions switch partners.

Front

What is an example of a double replacement reaction?

Back

AgNO3 + NaCl → AgCl(s) + NaNO3.