Need help asap
. ​

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

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