Transcript Wednesday, September 5

Today we will:
• Review last night’s
homework
• Begin to work with the
activity series
Last Night’s Homework:
• Problems 14-20 on
pages 285 & 286
Last Night’s Homework:
14. The solids aluminum and sulfur
react to produce aluminum
sulfide.
Al + S2 → Al2S3
Last Night’s Homework:
14. The solids aluminum and sulfur
react to produce aluminum
sulfide.
4Al + 3S2 → 2Al2S3
Last Night’s Homework:
14. The solids aluminum and sulfur
react to produce aluminum
sulfide.
4Al + 3S2 → 2Al2S3
synthesis
Last Night’s Homework:
15. Water and dinitrogen pentoxide
gas react to produce aqueous
hydrogen nitrate
H2O + N2O5 → HNO3
Last Night’s Homework:
15. Water and dinitrogen pentoxide
gas react to produce aqueous
hydrogen nitrate
H2O + N2O5 → 2HNO3
Last Night’s Homework:
15. Water and dinitrogen pentoxide
gas react to produce aqueous
hydrogen nitrate
H2O + N2O5 → 2HNO3
synthesis
Last Night’s Homework:
16. The gasses nitrogen dioxide and
oxygen react to produce
dinitrogen pentoxide gas
NO2 + O2 → N2O5
Last Night’s Homework:
16. The gasses nitrogen dioxide and
oxygen react to produce
dinitrogen pentoxide gas
4NO2 + O2 → 2N2O5
Last Night’s Homework:
16. The gasses nitrogen dioxide and
oxygen react to produce
dinitrogen pentoxide gas
4NO2 + O2 → 2N2O5
synthesis…
Last Night’s Homework:
16. The gasses nitrogen dioxide and
oxygen react to produce
dinitrogen pentoxide gas
4NO2 + O2 → 2N2O5
synthesis…
and combustion
Last Night’s Homework:
17. Ethane gas (C2H6) burns in air,
producing carbon dioxide gas
and water vapor.
C2H6 + O2 → CO2 + H2O
Last Night’s Homework:
17. Ethane gas (C2H6) burns in air,
producing carbon dioxide gas
and water vapor.
2C2H6 + 7O2 → 4CO2 + 6H2O
Last Night’s Homework:
17. Ethane gas (C2H6) burns in air,
producing carbon dioxide gas
and water vapor.
2C2H6 + 7O2 → 4CO2 + 6H2O
synthesis…
Last Night’s Homework:
17. Ethane gas (C2H6) burns in air,
producing carbon dioxide gas
and water vapor.
2C2H6 + 7O2 → 4CO2 + 6H2O
synthesis…
and combustion
Last Night’s Homework:
18. Aluminum oxide(s) decomposes
when electricity is passed
through it.
Al2O3 → Al + O2
Last Night’s Homework:
18. Aluminum oxide(s) decomposes
when electricity is passed
through it.
2Al2O3 → 4Al + 3O2
Last Night’s Homework:
19. Nickel(II) hydroxide(s)
decomposes to produce
nickel(II) oxide and water
Ni(OH)2 → NiO + H2O
Last Night’s Homework:
19. Nickel(II) hydroxide(s)
decomposes to produce
nickel(II) oxide and water
Ni(OH)2 → NiO + H2O
This one is already balanced.
Last Night’s Homework:
20. Heating sodium hydrogen
carbonate(s) produces sodium
carbonate(aq), carbon dioxide(g)
and water.
NaHCO3 → Na2CO3 + CO2 + H2O
Last Night’s Homework:
20. Heating sodium hydrogen
carbonate(s) produces sodium
carbonate(aq), carbon dioxide(g)
and water.
2NaHCO3 → Na2CO3 + CO2 + H2O
Tonight’s Homework:
• Problems 21-26 on
pages 289 & 291
Tonight’s Homework:
Fe(s) + CuSO4(aq) →
Will they react at all?