Predicting Products - Double Replacement & Insolubility

Front

What is a double replacement reaction?

Back

A double replacement reaction is a type of chemical reaction where two compounds exchange ions to form two new compounds.

Front

What is a precipitate?

Back

A precipitate is an insoluble solid that forms when two solutions are mixed and a chemical reaction occurs.

Front

What is the solubility rule for chlorides?

Back

Most chlorides are soluble in water, except for those of silver (Ag+), lead (Pb2+), and mercury (Hg2+).

Front

What is the solubility rule for sulfates?

Back

Most sulfates are soluble in water, except for those of barium (Ba2+), lead (Pb2+), and calcium (Ca2+).

Front

What is the solubility rule for carbonates?

Back

Most carbonates are insoluble in water, except for those of alkali metals (like sodium and potassium) and ammonium.

Front

What are the products of the reaction NaOH + MgSO3?

Back

The products are Mg(OH)2 and Na2SO3.

Front

What are the products of the reaction KOH + H3PO4?

Back

The products are K3PO4 and water (HOH).

Front

What is the role of the spectator ions in a double replacement reaction?

Back

Spectator ions are ions that do not participate in the actual chemical reaction and remain unchanged in the solution.

Front

How can you predict if a precipitate will form in a double replacement reaction?

Back

You can predict if a precipitate will form by using solubility rules to determine if any of the products are insoluble.

Front

What is the general form of a double replacement reaction?

Back

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