A copper rod that has a mass of 200 g has an initial temperature of 20°C and is heated to 40°C if 1540 Jeff he are needed to hit the road what is the specific heat of copper

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?