net ionic equations

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)

Which of the following is an example of a synthesis reaction:

• 2 H₂O → 2 H₂ + O₂ 
• 2 Na + Cl₂ → 2 NaCl
• CH₄ + 2 O₂ → 2 H₂O + CO₂
• 2 HCl + Zn → ZnCl₂ + H₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What coefficients are needed to correctly balance the equation?
_Bi   +   _O₂   →  _Bi₂O₃

• 3,2,3
• 2,3,2
• 4,3,2
• none of these

Tags

NGSS.HS-PS1-7

What type of chemical reaction is this?
Al(OH)₃ → Al₂O₃  + H₂O

• Decomposition
• Combustion
• Synthesis
• Single Replacement 

Tags

NGSS.MS-PS1-2

The following is what type of reaction:
NH₃ + HCl  → NH₄Cl

• Synthesis
• Decomposition
• Single Replacement Replacement
• Double Replacement Replacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these results in the formation of a precipitate?

• AgNO₃(aq)  +  NaOH(aq)→
• BaNO₃(aq)  +  CaCl₂(aq)→
• NaNO₃(aq)  +  KOH(aq)→
• More than one of these form precipitates

AgCl

• soluble
• insoluble

Tags

NGSS.HS-PS1-1

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)

What is the precipitate formed when you mix silver nitrate with copper chloride?

• copper nitrate
• copper chloride
• silver chloride
• silver nitrate

Tags

NGSS.HS-PS1-2

Which of these lists contains only soluble substances? Don't forget that the halides (family 17) will form precipitates with Ag+, Pb2+ and Hg2+.

• sodium nitrate, potassium chloride, calcium carbonate
• lead nitrate, lead chloride, lead sulfate
• calcium nitrate, copper chloride, ammonium phosphate
• silver nitrate, barium sulfate, copper carbonate