You know the drill by now-

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.

When the water vapor cools it condenses select a number that represents his process on the

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