Solubility and Precipitation reactions

Front

What is solubility?

Back

Solubility is the ability of a substance (solute) to dissolve in a solvent, forming a homogeneous solution at a specified temperature and pressure.

Front

What is a precipitation reaction?

Back

A precipitation reaction occurs when two soluble salts react in solution to form an insoluble solid, known as a precipitate.

Front

What is the solubility rule for alkali metal compounds?

Back

All alkali metal compounds (e.g., Li+, Na+, K+) are soluble in water.

Front

What is the solubility rule for nitrates?

Back

All nitrate compounds (NO3-) are soluble in water.

Front

What is the solubility rule for sulfates?

Back

Most sulfate compounds are soluble, except for those of Ba2+, Pb2+, and Ca2+.

Front

What is the solubility rule for carbonates?

Back

Most carbonates (CO3^2-) are insoluble, except for those of alkali metals and ammonium.

Front

What is the net ionic equation?

Back

The net ionic equation shows only the species that participate in the reaction, omitting spectator ions.

Front

What is a spectator ion?

Back

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

Front

What is the solubility of potassium bromide (KBr)?

Back

Potassium bromide (KBr) is soluble in water.

Front

What is the solubility of zinc hydroxide (Zn(OH)2)?

Back

Zinc hydroxide (Zn(OH)2) is insoluble in water.