Name and identify if the following as an acid, base, or salt. If it is an acid or a base, indicate whether it is weak or strong.

1. NaOHSodium hydroxidestrong base

2. KNO3Potassium nitratesalt

3. CH3COO^- acetate ionaq

4. CO2Carbon dioxidegas

5. H2ODihydrogen oxideliquid

6. HClO4Perchloric acidstrong acid

7. HOHdihydrogen oxideliquid

8. PO4^3-phosphate ionaq

9. KClpotassium chloridesalt

10. HClhydrochloric acidstrong acid

11. KFpotassium fluoridesalt

12. NH4+ammonium ionaq

13. HNO3nitric acidstrong acid

For each of the following sets of reactants,

1. Write the balanced molecular equation:

2. Write the ionic equation:

3. List the spectator ions:

4. Write the net ionic equation:
Set 1: Al(NO3)3(aq) +3 NaOH (aq) ------>Al(OH)3 (s) + 3 NaNO3 (aq)

ionic eqn:

Al+3(aq) + 3 NO3-(aq) + 3 Na+(aq) + 3 OH-(aq)------> Al(OH)3 (s) + 3 Na+(aq) + 3 NO3-(aq)

net ionic eqn:

Al+3(aq) + 3 OH-(aq)------> Al(OH)3 (s)

spectator ions:

3 Na+(aq) , 3 NO3-(aq)

Set 2:2 Li3PO4(aq) +3 Sr(OH)2 (aq) ------>6 LiOH (aq) + Sr3(PO4)2 (s)

ionic eqn:

6 Li+ (aq) + 2 PO43- (aq) + 3 Sr+2 (aq) + 6 OH- (aq)------>6 Li+ (aq) + 6 OH- (aq) + Sr3(PO4)2 (s)

net ionic eqn:

3 Sr+2 (aq)+ 2 PO43- (aq)------> Sr3(PO4)2 (s)

spectator ions:

6 Li+ (aq) , 6 OH- (aq)

Set 3:2 CuClO4 (aq) + Sr(OH)2 (aq) ------>2CuOH (s) + Sr(ClO4)2 (aq)

ionic eqn:

2 Cu+(aq) + 2 ClO4- (aq) + Sr+2(aq) + 2 OH- (aq)------>2 CuOH (s) + Sr+2(aq)+ 2 ClO4- (aq)

net ionic eqn:

Cu+(aq) + OH- (aq)------>CuOH (s)

spectator ions:

Sr+2(aq) , 2 ClO4- (aq)

Set 4: Na2CO3 (aq) + FeSO4 (aq) ------> Na2SO4 (aq) + FeCO3 (s)

ionic eqn:

2 Na+(aq) + CO32- (aq) + Fe+2(aq) + SO42- (aq) ------> 2 Na+(aq) + SO42- (aq) + FeCO3 (s)

net ionic eqn:

Fe+2(aq) + CO32- (aq) ------> FeCO3 (s)

spectator ions:

2 Na+(aq) , SO42- (aq)

In each of the following equations, indicate the element that has been oxidized and the one that has been reduced. Indicate what is the oxidizing agent and what is the reducing agent. You should also label the oxidation state of each before and after the process:

1)2 Na + FeCl2 2 NaCl + Fe

  • Sodium is oxidized, going from a 0 to +1 oxidation state. Sodium is the reducing agent.
  • Iron is reduced, going from a +2 to 0 oxidation state. Iron is the oxidizing agent.

2)2 C2H2 + 5 O2 4 CO2 + 2 H2O

  • Carbon is oxidized, going from a –1 to +4 oxidation state. Carbon is the reducing agent.
  • Oxygen is reduced, going from a 0 to –2 oxidation state. Oxygen is the oxidizing agent.

3)2 PbS + 3 O2 2 SO2 + 2 PbO

  • Sulfur is oxidized, going from a –2 to +4 oxidation state. Sulfur is the reducing agent.
  • Oxygen is reduced, going from a 0 to –2 oxidation state. Oxygen is the oxidizing agent.

4)2 H2 + O2 2 H2O

  • Hydrogen is oxidized, going from a 0 to +1 oxidation state. Hydrogen is the reducing agent.
  • Oxygen is reduced, going from a 0 to –2 oxidation state. Oxygen is the oxidizing agent.

5)Cu + HNO3 CuNO3 + H2

  • Copper is oxidized, going from a 0 to +1 oxidation state. Copper is the reducing agent.
  • Hydrogen is reduced, going from a +1 to 0 oxidation state. Hydrogen is the is the oxidizing agent.

6)AgNO3 + Cu  CuNO3 + Ag

  • Copper is oxidized, going from a 0 to +1 oxidation state. Copper is the reducing agent.
  • Silver is reduced, going from a +1 to 0 oxidation state. Silver is is the oxidizing agent.