1. Lab Notes

2. The reaction in the bottle:
2 Al(s) + 6 NaOH(aq) → 3 H2 (g) + 2 Na3AlO3(aq)
The black stuff
Gas at room temperature
Colorless
Lighter than air
The reactants for the reaction in the bottle:
Al /aluminum NaOH /sodium hydroxide (aq - H2O)
The observable products for the reaction in the bottle:
H /hydrogen Na3AlO3 /sodium aluminate
The reaction at the top of the bottle (and the lighted balloon):
2H2 + O2 →2H2O
Extremely flammable gas

3. The reaction in the bottle:
2 Al(s) + 6 NaOH(aq) → 3 H2 (g) + 2 Na3AlO3(aq)
The black stuff
Gas at room temperature
Colorless
Lighter than air
The reactants for the reaction in the bottle:
Al /aluminum NaOH /sodium hydroxide (aq - H2O)
The observable products for the reaction in the bottle:
H /hydrogen Na3AlO3 /sodium aluminate
The reaction at the top of the bottle (and the lighted balloon):
2H2 + O2 →2H2O
Extremely flammable gas