At stp, which element is melleable and a good conductor of electricity? a- xenon b- silicon c- platinum d- hydrogen

What reaction is taking place? 02 + c3h8 = h20 + co2

Compare and contrast physical changes with chemical changes.

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.