Chemistry Semester 2 Final

What are the spectator ions in this reaction?
CuCl₂(aq) + NaOH(aq) → Cu(OH)₂(s) + NaCl(aq)
 

• Cu²⁺ and OH^1-
• Na²⁺ and Cl^2-
• Na¹⁺ and Cl^1-
• Na¹⁺ and OH^1-

Which is the correct net ionic equation for the reaction of:

AgNO₃ (aq) + CaCl₂ (aq) -> AgCl (s) + Ca(NO₃)₂ (aq)

• Ca²⁺(aq) +  2Cl^- (aq) → CaCl(s)
• Ag⁺(aq)  +  Cl^- (aq) → AgCl(s)
• Ag +  Cl  →  AgCl
• Ag⁺  +  Ca²⁺   →Ag₂Ca (s)

What is the net ionic equation for the reaction between K₃PO_{4 (aq)} and CuSO_{4 (aq)} that produces K₂SO_{4 (aq)} and Cu₃(PO₄)_{2 (s)}?

• 2 K⁺_(aq) + SO₄^2-_(aq) → K₂SO_{4 (s)}

• K⁺_(aq) + SO₄^2-_(aq) → KSO_{4 (s)}

• 2 Cu²⁺_(aq) + 3 PO₄^3-_(aq) → Cu₃(PO₄)_{2 (s)}

• Cu²⁺_(aq) + PO₄^3-_(aq) → CuPO_{4 (s)}

Tags

NGSS.HS-PS1-7

Which of the following reactions does NOT form a precipitate?

• Pb(NO₃)₂ (aq) + 2KI (aq) → PbI_{2 (s)} + 2KNO_{3 (aq)}

• Pb(NO₃)₂ (aq) + K₂SO₄ (aq) → PbSO_{4 (s)} + KNO_{3 (aq)}

• AgNO₃ (aq) + Na₂S (aq) → Ag₂S (s)+ NaNO_{3 (aq)}

• KCl (aq) + NaNO₃ (aq) → NaCl (aq) + KNO_{3 (aq)}

What are the spectator ions in this reaction?

NaCl_(aq) + AgNO_3(aq) → AgCl_(s) + NaNO_3(aq)

• Ag⁺ and NO₃^-

• Na⁺ and Cl^-

• Na⁺ and NO₃^-

• Ag⁺ and Cl^-

Which is the correct net ionic equation for this reaction?

3KOH_(aq) + FeCl_3(aq) → 3KCl_(aq) + Fe(OH)_3(s)

• 3K⁺ (aq) + 3Cl^- (aq) → 3KCl (s)

• Fe³⁺ (aq) + 3OH^- (aq) → Fe(OH)₃ (s)

• Fe³⁺ (aq) + Cl^- (aq) → Fe(OH)₃ (s)

• 3K⁺ (aq) + 3OH^- (aq) + Fe³⁺ (aq) + 3Cl^- (aq) → Fe(OH)₃ (s)

Which of the following compounds is SOLUBLE?

• copper carbonate

• calcium carbonate

• potassium carbonate

• strontium carbonate

Tags

NGSS.HS-PS1-1

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

Considering the following precipitation reaction:

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

What is the correct complete ionic equation?

• Pb²⁺ + (NO₃)₂^- + 2K⁺ + 2I^- → PbI₂(s) + 2K⁺ + 2NO₃^-

• Pb²⁺ + 2NO₃^- +2K⁺ + I^- → PbI₂(s) + 2K⁺ + NO₃^-

• Pb²⁺ + 2NO₃^- + 2K⁺ + 2I^- → PbI₂(s) + 2K⁺ + 2NO₃^-

• Pb²⁺ + 2NO^3- + 2K⁺ + 2I^- → Pb²⁺ + 2I^- + 2K⁺ + 2NO₃^-

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Which is the correct net ionic equation for the reaction of AgNO₃ and CaCl₂?

• Ca²⁺(aq) +  2Cl^- (aq) → CaCl(s)
• Ag⁺(aq)  +  Cl^- (aq) → AgCl(s)
• Ag +  Cl  →  AgCl
• Ag⁺  +  Ca²⁺   →Ag₂Ca (s)