SI 4/10-13

solubility rules

100

Is this compound soluble: NaNO3

What is yes, on page 312

200

Is PbCO3 soluble

What is no

300

Would a precipitate form in a reaction between NaCl and KNO3

What is no both of the products, KCl and NaNO3 are soluble

400

Complete the following reaction Ca(NO3)2 (aq) + K2SO4 (aq)

What is CaSO4(s) + 2KNO3 (aq)

500

Complete the following reaction CrBr2(aq) + Na2CO3 (aq)

What is CrCO3(s) + 2 NaBr(aq)

Exam III

100

What is the molecular geometry of NH3

What is trigonal pyramidal

200

Which of the following do you expect to be nonpolar: BH3 CH4 HF NH3 H2O

What is BH3 CH4

300

What is the sum of the coefficients in the complete combustion of C2H6O?

What is 9

400

22. In a common rocket fuel mixture, dinitrogen tetroxide and C2H8N2 react according to the equation: 2 N2O4 + C2H8N2 → 3 N2 + 2 CO2 + 4 H2O. What mass of dinitrogen tetroxide is needed to completely react with 1.2 kg of C2H8N2?

What is 3.7kg

500

25. What is the concentration of potassium ions in a solution made by dissolving 0.346 g of potassium carbonate in enough water to give a total volume of 250.0 mL?

What is b) 20.0 mM

acids and bases

100

What is the Arrhenius definition of an acid?

What is produces H+ in solution

200

what is the Arrhenius definition of a base?

What is produces OH- ions in solution

300

Name this acid: HCl

What is hydrochloric acid

400

give the formula for phosphoric acid

What is H3PO4

500

Name this acid: HNO2

What is Nitrous acid

Complete and net ionic equations

100

Write the complete ionic equation for the reaction: HCL(aq) + LiOH(aq) --> H2O(l) + LiCl(aq)

H+(aq) + Cl-(aq) + Li+(aq) + OH-(aq) --> H2O(l) + Li+(aq) + Cl-(aq)

200

What is the net ionic equation for MgS(aq) + CuCl2(aq) --> CuS(s) + MgCl2(aq)

What is Cu2+(aq) + S2-(aq) --> CuS(s)

300

give the complete and net ionic equation for the rxn NaOH(aq) + HNO3(aq) --> H2O(l) + NaNO3(aq)

Complete: H+(aq) + Cl-(aq) + Li+(aq) + OH-(aq)-->H2O(l) +Li+(aq) + Cl-(aq) Net: H+(aq) + OH-(aq) --> H2O(l)

400

write the balanced complete ionic equation for K2SO4(aq) + CaI2(aq) --> CaSO4(s) + KI(aq)

Balanced: K2SO4 + CaI2 --> CaSO4 + 2KI complete: 2K+(aq) + SO42-(aq) + Ca2+(aq) + 2I-(aq) --> CaSO4(s) + 2K+(aq) + 2I-(aq)

500

Write the balanced complete and net ionic equations Na3PO4(aq) + NiCl2(aq) --> Ni3(PO4)2(s) + NaCl(aq)

Balanced: 2Na3PO4 + 3NiCl2 --> Ni3(PO4)2 + 6NaCl complete: 6Na + 2PO4 + 3Ni + 6Cl --> Ni3(PO4)2 + 6Na+ 6Cl net:3Ni + 2PO4 --> Ni3(PO4)2