Chemical Reactions Demonstration

For the first demonstration we put 25 mL of ethanol into a 2 L bottle and swirled it all around and stuff. Then she swirled around the capped bottle. She poured out the ethanol into the trash when most of it turned into gas. Then she put a barbecue lighter to the top of the bottle. So when the ethanol hit the torch it produced combustion! Now for the next experiment she put vinegar and then baking soda into a beaker. Then lit two candles. So when the ingredients mixed in the beaker we got carbon dioxide! So with the two candles lit. She "poured" the gas emitted from the mixing of the two reactants onto the flame emitted from the candles and the flame went out entirely! This was because the carbon dioxide took away the oxygen the flame needed. The last experiment was we had chlorine and zinc. We poured 200 mL of the chlorine into our new clean beaker. Then added zinc. This caused another chemical reaction! The mixture produced a very flammable gas. Then we put our barbecue lighter to the gas and the mixture was immediately set on fire.