NIE Level 2: Spec. ions & NIE's

What precipitate forms when you mix lead(II) nitrate, Pb(NO₃)₂ with sodium chloride, NaCl?

• sodium nitrate, NaNO₃ 

• lead(II) chloride, PbCl₂

• sodium lead, NaPb

• chloride nitrate, ClNO₃ 

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)

Tags

NGSS.HS-PS1-7

Which of the following does NOT form a precipitate?

• Pb(NO₃)₂(aq) + 2KI(aq) →
• Sr(NO₃)_{2 (aq)} + K₂SO_4(aq) →
• AgNO₃(aq) + Na₂S(aq) →
•  Pb(NO₃)₂(aq) + AgNO₃(aq) →

Tags

NGSS.HS-PS1-3

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-

What is the result of the reaction between solutions of potassium bromide, KBr and ammonium sulfide, (NH₄)₂S?

• potassium sulfide, K₂S precipitates

• ammonium bromide, NH₄Br precipitates

• potassium ammonium, KNH₄ precipitates

• no precipitate is formed

What would happen if solutions of sodium nitrate, NaNO₃ and ammonium chloride, NH₄Cl were mixed?

• A precipitate of sodium chloride, NaCl would form.

• A precipitate of ammonium chloride, NH₄Cl would form.

• Neither sodium nitrate, NaNO₃ nor ammonium chloride, NH₄Cl would dissolve.

• Nothing would happen.

What would be the net ionic reaction for:
K₂SO₄(aq) + Ba(C₂H₃O₂)₂(aq) -> BaSO₄(s) + 2 KC₂H₃O₂(aq)

• K₂⁺(aq) + (C₂H₃O₂)₂²(aq) -> 2KC₂H₃O₂(s)
• 2 K⁺(aq) + 2C₂H₃O₂^-(aq) -> 2 KC₂H₃O₂(s)
• Ba²⁺(aq) + SO₄^2-(aq) -> BaSO₄(s)
• None of these are correct.

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

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

• Ca²⁺(aq) + 2Cl^- (aq) → CaCl(s)

• Ag⁺(aq) + Cl^- (aq) → AgCl(s)

• Ag + Cl → AgCl

• Ag⁺ + Ca²⁺ →Ag₂Ca (s)

Tags

NGSS.HS-PS1-7

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-

Tags

NGSS.HS-PS1-7

In this equation,

CuCl₂(aq)+ NaOH(aq) → Cu(OH)₂ + NaCl

Which product is insoluble?

• copper(II) hydroxide

• sodium chloride

• sodium hydroxide

• copper(II) chloride