Net Ionic, Solubility and balancing review

In this equation,
CuCl₂ + NaOH  → Cu(OH)₂ + NaCl
Which product is insoluble?

• copper(II) hydroxide
• sodium chloride
• sodium hydroxide
• copper(II) chloride

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 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-

In this equation,

CuCl₂+ NaOH → Cu(OH)₂ + NaCl

Which product is insoluble?

• copper(II) hydroxide

• sodium chloride

• sodium hydroxide

• copper(I) hydroxide

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 correct net ionic equation for the reaction between HBr_(aq) and LiOH_(aq) that produces LiBr_(aq) and H₂O_(l)?

• 2 H⁺_(aq) + O^2-_(aq) → H₂O_(l)

• 2 H_{2 (aq)} + O_2(aq) → 2 H₂O_(l)

• 2 H_{2 (g)} + O_2(g) → 2 H₂O_(l)

• H⁺_(aq) + OH^-_(aq) → H₂O_(l)

Which is the name of the kind of solid substance formed in this figure?  

• aqueous 
• precipitate
• acid
• synthesis 

Tags

NGSS.MS-PS1-2

What is the result of this reaction?

2KBr_(aq) + Na₂S_(aq) → K₂S_{( )} + 2NaBr_{(. )}

• K₂S precipitates

• NaBr precipitates

• KBr precipitates

• No precipitate is formed

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)

What are the spectator ions in this reaction?

3Pb(NO₃)_2(aq) + 2AlCl_3(aq) → 3PbCl_2(s) + 2Al(NO₃)_3(aq)

• Pb²⁺ and Cl^-

• Cl^- and Al³⁺

• Al³⁺ and NO₃^-

• NO₃^- + Pb²⁺