Why is alchemy no longer accepted

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !