Chp 13 (Solubility Rules, Ionic Equations, Electrolyte, Colloid, Suspension and Solution Questions)
Cl, Br, and I are insoluble when paired with...
Ag, Hg, or Pb.
SO4 is generally...
Soluble
Li+, Na+, K+, NH4+ are generally...
Always Soluble (No Exceptions)
NO3 and C2H3O2 are generally...
Always Soluble (No Exceptions)
Cl, Br, and I are generally...
Soluble.
SO is insoluble when paired with...
Sr, Ba, Pb, Ag, or Ca.
Which equation best represents the behavior of acetic acid, CH3CO2H, in water? A) CH3CO2H(l) ⇌ H+(aq) + CH3CO2−(aq) B) CH3CO2H(l) → H+(aq) + CH3CO2−(aq) C) CH3CO2H(l) → CH3CO2H(aq) D) CH3CO2H(l) ⇌ CH3CO2H(aq)
A) CH3CO2H(l) ⇌ H+(aq) + CH3CO2−(aq) (Acetic Acid is a weak electrolyte, indicated by ⇌, so it will partially dissociate.)
Which of the following salts would be insoluble in water? A) CaSO4 B) MgBr2 C) KNO3 D) BaS
A) CaSO4 (According the to solubility rules, When SO4 is paired with Sr, Ba, Pb, Ag and Ca it is insoluble.)
Select the NET ionic equation for the reaction between HCl and NaOH. A) H+(aq) + OH−(aq) → H2O(l) B) H+(aq) + Cl−(aq) + Na+(aq) + OH−(aq) → H2O(l) + Cl−(aq) + Na+(aq) C) HCl(aq) + NaOH(aq) → H+(aq) + Cl−(aq) + Na+(aq) + OH−(aq) D) HCl(aq) + NaOH(aq) → H2O(l) + NaCl(aq)
A) H+(aq) + OH−(aq) → H2O(l) (The net ionic equation cancels out spectator ions that have the same formula and state of matter on either side of the equation. Cl and Na are spectator ions.)
Which of the following is a nonelectrolyte? A) Lactose, C12H22O11 B) Hydrochloric acid, HCl C) Ammonium chloride, NH4Cl D) Water, H2O
A) Lactose, C12H22O11 (Lactose, C12H22O11, is a covalent compound. Covalent compounds dissolve as molecules and are unable to conduct electricity.)
Which of the following is an example of a suspension? A) Medication that indicates "shake before use" B) Shaving cream C) Cranberry juice D) Air
A) Medication that indicates "shake before use" (Other Examples: Oil and Vinegar salad dressing, Lemonade with Pulp)
Which of the following salts would be insoluble in water? A) MgS B) NaOH C) BaS D) NH4NO3
A) MgS (According to the solubility rules, S is generally insoluble, unless paired with: Li, Na, K, or Pb, as well as, Ca, Sr, or Ba.)
Which of the following is a strong electrolyte? A) Potassium iodide, KI B) Glucose, C6H12O6 C) Acetic acid, CH3COOH D) Methanol, CH3OH
A) Potassium iodide, KI (KI is a strong electrolyte and a Soluble ionic compound, as it completely dissociate into their ions, which is a strong electrolyte. Acetic acid is a weak electrolyte as it is a weak acid. Methanol and glucose are both nonelectrolytes as they are covalent compounds.)
Select the NET ionic equation for the reaction between AgNO3 and NaCl. A) AgNO3(aq) + NaCl(aq) → Ag+(aq) + NO3−(aq) + Na+(aq) + NO3−(aq) B) Ag+(aq) + Cl−(aq) → AgCl(s) C) Ag+(aq) + NO3−(aq) + Na+(aq) + Cl−(aq) → AgCl(s) + NO3−(aq) + Na+(aq) D) AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)
B) Ag+(aq) + Cl−(aq) → AgCl(s) (The net ionic equation cancels out spectator ions that have the same formula and state of matter on either side of the equation.)
Which of the following salts would be insoluble in water? A) KOH B) AgCl C) NH4Cl D) NaF
B) AgCl (According to the solubility rules, When Cl is paired with Ag, Hg, or Pb, it is insoluble.)
Which of the following is a weak electrolyte? A) Magnesium chloride, MgCl2 B) Carbonic acid, H2CO3 C) Isopropyl alcohol, C3H7OH D) Sodium hydroxide, NaOH
B) Carbonic acid, H2CO3 (Carbonic Acid is a weak acid. Weak acids partially dissociate into their ions, which is also a weak electrolyte.)
Which of the following would be soluble in water? A) PbBr2 B) Mg(NO3)2 C) CaCO3 D) ZnS
B) Mg(NO3)2 (NO3 is completely soluble in water. They rest are insoluble.)
Which of the following salts would be insoluble in water? A) Pb(NO3)2 B) KOH C) AgCl D) Li2CO3
C) AgCl (According to the solubility rules, When Cl is paired with Ag, Hg, or Pb, it is insoluble.)
Select the NET ionic equation for the reaction between Na2CO3 and BaCl2. A) 2 Na+(aq) + CO32−(aq) + Ba2+(aq) + 2 Cl−(aq) → BaCO3(s) + 2 Na+(aq) + 2 Cl−(aq) B) 2 Na+(aq) + CO32−(aq) + Ba2+(aq) + 2 Cl−(aq) → BaCO3(aq) + 2 Na+(aq) + 2 Cl−(aq) C) CO32−(aq) + Ba2+(aq) → BaCO3(s) D) Na2CO3(aq) + BaCl2(aq) → BaCO3(s) + 2 NaCl(aq)
C) CO32−(aq) + Ba2+(aq) → BaCO3(s) (The net ionic equation cancels out spectator ions that have the same formula and state of matter on either side of the equation.)
Which of the following is an example of a solution? A) Oil and vinegar salad dressing B) Butter C) Gatorade D) Smoke
C) Gatorade (Other Examples: Hot Tea, Salt Water)
Identify the solid product formed, if any, from the reaction of LiOH and CaCl2.
Ca(OH)2 (The reaction between the substances: 2 LiOH(aq) + CaCl2(aq) → 2 LiCl(aq) + Ca(OH)2(s)) (OH is only slightly soluble when paired with Ca)
A mixture contains particles large enough to refract light, but the particles do not settle. What type of mixture is it?
Colloid
________ is a mixture where a dispersed substance is finely divided but not truly dissolved in a dissolving medium.
Colloid
Identify the solid product formed, if any, from the reaction of K3PO4 and CuCl2.
Cu3(PO4)2 (the reaction between the substances: 2 K3PO4(aq) + 3 CuCl2(aq) → Cu3(PO4)2(s) + 6 KCl(aq)) ((PO4)2 is usually insoluble unless paired with Li, Na, K, or NH4 in water)
Which of the following is an example of a colloid? A) Salt water B) Lemonade with pulp C) A cup of hot tea D) Fog
D) Fog (Other Examples: Smoke, Butter)
Select the COMPLETE ionic equation for the reaction between KBr and NaCl. A) KBr(aq) + NaCl(aq) → K+(aq) + Br−(aq) + Na+(aq) + Cl−(aq) B) K+(aq) + Br−(aq) + Na+(aq) + Cl−(aq) → KCl(s) + Na+(aq) + Br−(aq) C) KBr(aq) + NaCl(aq) → KCl(aq) + NaBr(aq) D) K+(aq) + Br−(aq) + Na+(aq) + Cl−(aq) → K+(aq) + Br−(aq) + Na+(aq) + Cl−(aq)
D) K+(aq) + Br−(aq) + Na+(aq) + Cl−(aq) → K+(aq) + Br−(aq) + Na+(aq) + Cl−(aq) (Complete ionic equations include all aqueous substances as ions, while pure liquids and solids are shown in their molecular form.)
Which of the following would be soluble in water? A) BaSO4 B) Hg2Cl2 C) Ca3(PO4)2 D) KC2H3O2
D) KC2H3O2 (it contains a water soluble cation, K+, and a water soluble anion, C2H3O2-.)
Which equation best represents the behavior of KNO3 in water? A) KNO3(s) ⇌ K+(aq) + NO3−(aq) B) KNO3(s) → K+(aq) + N3−(aq) + O2−(aq) C) KNO3(s) ⇌ K+(aq) + N3−(aq) + O2−(aq) D) KNO3(s) → K+(aq) + NO3−(aq)
D) KNO3(s) → K+(aq) + NO3−(aq) (KNO3 is an ionic compound and a strong electrolyte that will dissociate completely in water. NO3− is a polyatomic ion and will not dissociate in water.)
Which equation best represents the behavior of NaCl in water? A) NaCl(s) ⇌ Na+(aq) + Cl−(aq) B) NaCl(s) → NaCl(aq) C) NaCl(s) ⇌ NaCl(aq) D) NaCl(s) → Na+(aq) + Cl−(aq)
D) NaCl(s) → Na+(aq) + Cl−(aq) (NaCl is a strong electrolyte indicated by →, so it will dissociate completely in water.)
Select the NET ionic equation for the reaction between KBr and NaCl. A) KBr(aq) + NaCl(aq) → K+(aq) + Br−(aq) + Na+(aq) + Cl−(aq) B) K+(aq) + Br−(aq) + Na+(aq) + Cl−(aq) → KCl(s) + Na+(aq) + Br−(aq) C) KBr(aq) + NaCl(aq) → KCl(aq) + NaBr(aq) D) No reaction
D) No Reaction (There is no Net ionic equation because they are all spectator ions.)
Which of the following salts would be insoluble in water? A) LiNO3 B) MgCl2 C) NaHCO3 D) PbSO4
D) PbSO4 (Accroding to the solubility rules, when SO4 is paired with Sr, Ba, Pb, Ag, and Ca it is insoluble.)
Write the COMPLETE ionic equation for the reaction between HCl and NaOH.
H+(aq) + Cl−(aq) + Na+(aq) + OH−(aq) → H2O(l) + Cl−(aq) + Na+(aq) (Complete ionic equations include all aqueous substances as ions, while pure liquids and solids are shown in their molecular form.)
OH and S are generally...
Insoluble.
CO3 and PO4 are soluble when paired with...
Li, Na, K or NH4.
Identify the solid product formed, if any, from the reaction of (NH4)2CO3 and Mg(NO3)2.
MgCO3 (The reaction between the substances: Mg(NO3)2(aq) + (NH4)2CO3(aq) → MgCO3(s) + 2 NH4NO3(aq)) (CO3 is only soluble when paired with Li, Na,K, or NH4)
Identify the solid product formed, if any, from the reaction of MgSO4 and Na2S.
MgS (The reaction between the substances: MgSO4(aq) + Na2S(aq) → MgS(s) + Na2SO4(aq), MgS isnt soluble.)
Identify the solid product formed, if any, from the reaction of NH4NO3 and CaI2.
No Solid Formed (The reaction between the two substance shoes that all substances are aqueous and can dissolve in water.)
_______ is a homogeneous mixture of two or more substances.
Solution
Copper(I) nitrate, CuNO3, is dissolved in water and forms a transparent, blue mixture. What type of mixture is it?
Solution (Particles in a solution will dissolve and are too small to refract light, so the mixture would be transparent.)
_________ is a heterogeneous mixture in which solute particles settle out of solution.
Suspension
Which equation best represents the behavior of HCl in water? A) HCl(s) → H+(aq) + Cl−(aq) B) HCl(s) ⇌ H+(aq) + Cl−(aq) C) HCl(s) → HCl(aq) D) HCl(s) ⇌ HCl(aq)
A) HCl(s) → H+(aq) + Cl−(aq) (HCl is a strong electrolyte, indicated by →, so it will dissociate completely)
Select the COMPLETE ionic equation for the reaction between AgNO3 and NaCl. A) AgNO3(aq) + NaCl(aq) → Ag+(aq) + NO3−(aq) + Na+(aq) + NO3−(aq) B) Ag+(aq) + Cl−(aq) → AgCl(s) C) Ag+(aq) + NO3−(aq) + Na+(aq) + Cl−(aq) → AgCl(s) + NO3−(aq) + Na+(aq) D) AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)
C) Ag+(aq) + NO3−(aq) + Na+(aq) + Cl−(aq) → AgCl(s) + NO3−(aq) + Na+(aq) (Complete ionic equations include all aqueous substances as ions, while pure liquids and solids are shown in their molecular form.)
Which equation best represents the behavior of glucose in water? A) C6H12O6(s) ⇌ C6H12O6(aq) B) C6H12O6(s) ⇌ 6C(aq) + 6H2O(l) C) C6H12O6(s) → C6H12O6(aq) D) C6H12O6(s) → 6C(aq) + 6H2O(l)
C) C6H12O6(s) → C6H12O6(aq) (Glucose is a non-electrolyte, indicated by →, so it will not dissociate at all.)
Select the net ionic equation for the reaction between NH4Cl and Pb(C2H3O2)2. A) 2 NH4+(aq) + 2 Cl−(aq) + Pb2+(aq) + 2 C2H3O2−(aq) → PbCl2(s) + 2 NH4+(aq) + 2 C2H3O2−(aq) B) 2 NH4+(aq) + 2 Cl−(aq) + Pb2+(aq) + 2 C2H3O2−(aq) → PbCl2(aq) + 2 NH4+(aq) + 2 C2H3O2−(aq) C) Pb2+(aq) + 2 Cl−(aq) → PbCl2(s) D) 2 NH4Cl(aq) + Pb(C2H3O2)2 (aq) → PbCl2(s) + 2 NH4C2H3O2(aq)
C) Pb2+(aq) + 2 Cl−(aq) → PbCl2(s) (The net ionic equation cancels out spectator ions that have the same formula and state of matter on either side of the equation. 2NH4 and 2C2H3O2 are spectator ions.)
CO3 and PO4 are generally...
Insoluble
S is soluble when paired with...
Li, Na, K, NH4 Ca, Sr, Ba
OH is soluble when paired with....
Li, Na, K, NH4 Ca, Sr, Ba. (slightly soluble)