In chemistry, we had a lab. in this lab, we took rusted copper cents and we put it in heated zinc chloride solution. i am just wondering what the name of this alloy is.

How long could you survive without electricity? what parts of your life would be affected by loss of electricity? should you prepare for an electricity outage, and if so, how would you prepare? what backup system could your family or community install to generate limited amounts of electricity during an outage? how does this system create an electric force field and generate electric current?