IP PreAP: Solubility Rules and Precipitation Reactions

Predict the product(s) of this reaction and state whether it is soluble or insoluble.

Li + H₂O →

• LiCl (soluble), H2 (gas)
• LiOH (soluble), H2 (gas)
• Li2O (insoluble), H2O (liquid)
• LiOH (insoluble), O2 (gas)

Which of the following compounds is SOLUBLE?

• copper carbonate

• calcium carbonate

• potassium carbonate

• strontium carbonate

When solid NaCl is stirred into water, which of the following is NOT true?

• Individual sodium and chloride ions are present.

• The solution will conduct electricity.

• The solution will taste salty.

• The NaCl will fail to dissociate.

Tags

NGSS.HS-PS1-3

What would be the formula of the precipitate that forms when Pb(NO₃)₂ (aq) and K₂SO₄ (aq) are mixed?

• K(NO₃)₂

• PbSO₄

• PbK₂

• H₂O

Tags

NGSS.HS-PS1-2

Which statement best explains why a solution is labeled “aqueous” and whether other solvents can be used in precipitation reactions?

• A solution is labeled 'aqueous' if it is heated, and no other solvents are suitable for precipitation reactions.
• A solution is called aqueous when water is the solvent; other solvents can dissolve ionic compounds, but the solution would not be considered aqueous.

• A solution is labeled 'aqueous' when it contains alcohol as the solvent, and only water can be used in precipitation reactions.
• A solution is labeled 'aqueous' when it is mixed with oil, and other solvents are not effective in precipitation reactions.

Considering the following precipitation reaction:

Pb(NO₃)₂(aq) + 2KI(aq) → PbI₂(s) + 2KNO₃(aq)

Which compound would not form ions in the complete ionic equation?

• PbI2

• KNO₃

• Pb(NO₃)₂

• KI

Considering the following precipitation reaction:

Pb(NO₃)₂(aq) + 2KI(aq) → PbI₂(s) + 2KNO₃(aq)

Which ion would NOT be present in the complete ionic equation?

• Pb2+

• K⁺

• NO^3-

• I^-

• All the above ions are in the complete ionic equation.

Which of the following compounds is INSOLUBLE?

• magnesium phosphate

• magnesium sulfate

• magnesium iodide

• magnesium nitrate

• none of the above

Tags

NGSS.HS-PS1-1

Zinc Carbonate

• Soluble 
• Insoluble 

Silver acetate

• Soluble 
• Insoluble

Tags

NGSS.HS-PS1-1