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Chemistry, Science
9th -
11thgrade
Year 10-11: IGSCE Solubility and Precipitation
25 questions
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- 1. Multiple Choice
What are spectator ions?
Ions which do not change state or charge on both sides of an equation
Ions which change charge only on both sides of the equation
Ions which keep the same charge, but change state
Ions which become elements during a reaction
- 2. Multiple Choice
Which of the following positive ions always produce soluble salts
Nitrate
Sodium
Copper
Silver
- 3. Multiple Choice
Which of the following positive ions always produce soluble salts
Silver
Potassium
Aluminium
Magnesium
- 4. Multiple Choice
Which of the following positive ions always produce soluble salts?
Ammonium
Beryllium
Sulphate
Nitrate
- 5. Multiple Choice
Which of the following negative ions always produces soluble salts?
Chloride
Nitrate
Bromide
Sulphate
- 6. Multiple Choice
Hydroxide, oxide, and carbonate ions are...
Usually insoluble (except for K, Na, and NH4) salts
Always insoluble
Always soluble
- 7. Multiple Choice
Chloride ions are...
Always soluble
Always insoluble
Usually soluble (except for Ag and Pb salts)
- 8. Multiple Choice
What are the spectator ions in this equation?
Ag+ (aq) + Cl- (aq) + Na+ (aq) + NO3- (aq) -----> AgCl (s) + Na+ (aq) + NO3- (aq)
Na+ (aq) + NO3- (aq)
Ag+ (aq) + NO3- (aq)
Cl- (aq) + NO3- (aq)
None are spectating
- 9. Multiple Choice
What is the ionic equation for this reaction?
Ag+ (aq) + Cl- (aq) + Na+ (aq) + NO3- (aq) -----> AgCl (s) + Na+ (aq) + NO3- (aq)
Ag+ (aq) + Cl- (aq) + Na+ (aq) + NO3- (aq) -----> AgCl (s) + Na+ (aq) + NO3- (aq)
Ag+ (aq) + Cl- (aq)-----> AgCl (s)
Ag+ (aq) + Cl- (aq) -----> Na+ (aq) + NO3- (aq)
Na+ (aq) + NO3- (aq) -----> NaNO3 (aq)
- 10. Multiple Choice
What are the spectator ions in this equation?
Ba2+ (aq) + Cl- (aq) + Na+ (aq) + SO42- (aq) -----> BaSO4 (s) + Na+ (aq) + Cl- (aq)
Na+ (aq) + Cl- (aq)
Ba2+ (aq) + Cl- (aq)
Cl- (aq) + NO3- (aq)
None are spectating
- 11. Multiple Choice
What is the ionic equation for this reaction?
Ba2+ (aq) + Cl- (aq) + Na+ (aq) + SO42- (aq) -----> BaSO4 (s) + Na+ (aq) + Cl- (aq)
Na+ (aq) + Cl- (aq) -----> NaCl (aq)
Na+ (aq) + SO42- (aq) -----> BaSO4
Ba2+ (aq) + SO42- (aq) -----> BaSO4 (s)
Ba2+ (aq) + Cl- (aq) + Na+ (aq) + SO42- (aq) -----> BaSO4 (s) + Na+ (aq) + Cl- (aq)
- 12. Multiple Choice
What are the spectator ions in this equation?
K+ (aq) + Cl- (aq) + Na+ (aq) + NO3- (aq) -----> K+ (aq) + Cl- (aq) + Na+ (aq) + NO3- (aq)
Na+ (aq) + NO3- (aq)
K+ (aq) + NO3- (aq)
Cl- (aq) + NO3- (aq)
All are spectating (no reaction)
- 13. Multiple Choice
What are the spectator ions in this reaction?
CuCl2(aq) + NaOH(aq) → Cu(OH)2(s) + NaCl(aq)
Cu2+ and OH-
Na2+ and Cl2-
Na+ and Cl-
Na+ and OH-
- 14. Multiple ChoiceWhat is the precipitate formed when you mix silver nitrate with copper chloride?copper nitratecopper chloridesilver chloridesilver nitrate
- 15. Multiple Choice
Which of these results in the formation of a precipitate?
AgNO3(aq) + NaNO3(aq)→
BaNO3(aq) + K2SO4 (aq)→
NaNO3(aq) + KOH(aq)→
More than one of these form precipitates
- 16. Multiple Choice
What is the name of the precipitate formed in the reaction of calcium nitrate and potassium carbonate?
calcium nitrate
calcium carbonate
no ppt is formed
potassium nitrate
- 17. Multiple ChoiceIn this equation,
CuCl2 + NaOH → Cu(OH)2 + NaCl
Which product is insoluble?copper(II) hydroxidesodium chloridesodium hydroxidecopper(II) chloride - 18. Multiple Choice
Which is the correct 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)
- 19. Multiple ChoiceWhich of the following does NOT form a precipitate?Pb(NO3)2(aq) + 2KI(aq) →Sr(NO3)2 (aq) + K2SO4(aq) →AgNO3(aq) + Na2S(aq) →Pb(NO3)2(aq) + AgNO3(aq) →
- 20. Multiple Choice
Which of the following does NOT form a precipitate?
AgNO3(aq) + 2KBr(aq) →
KNO3 (aq) + NaCl (aq) →
Ca(NO3)2(aq) + K2CO3(aq) →
Ba(NO3)2 (aq) + Na2SO4(aq) →
- 21. Multiple ChoiceWhat are the spectator ions in the reaction of sodium chloride with silver nitrate?silver and nitratesodium and chloridesodium and nitratesilver and chloride
- 22. Multiple Choice
what is the correct ionic equation for the reaction between AgNO3(aq) and KClaq
Ag+ (aq) + Cl- (aq) → AgCl(s)
Ag- + NO3+ + K- + Cl+→ K- + NO3+ + AgCl(s)
Ag+ + NO3- + K+ + Cl-→ KNO3(s) + Ag++ Cl-
No reaction
- 23. Multiple ChoiceWhat precipitate forms when you mix lead (II) nitrate with sodium chloride?sodium nitratelead (II) chloridesodium leadchloride nitrate
- 24. Multiple Choice
An aqueous solution of ammonium phosphate is placed into an aqueous solution of Sodium sulphate. what would be the net ionic equation
No reaction occurs
NH4+ + SO42- → (NH4)2SO4
Na+ + PO43- → (Na)2PO4
Na+ + SO42- →(Na)2SO4
- 25. Multiple Choicewhat is the net ionic equation for the reaction
2NaOH(aq) + CuCl2(aq) → 2NaCl(aq) + Cu(OH)2(s)2OH–(aq) + Cu2+(aq) → Cu(OH)2(s)2OH–(aq) + Na+(aq) → NaOH(s)2Cl–(aq) + Cu2+(aq) → CuCl2(s)Cl–(aq) + Na+(aq) → NaCl(s) - Answer choicesTagsAnswer choicesTags