In the reaction 4A1+302 +_ Al, 03, what coefficient should be placed in front of the Al, to balance the reaction? 1 2 3 or 4

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?

What type of reaction fuels the processes seen here?

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas