When is calcium hydroxide is formed, heat is released. Calculate the amount of heat (in kJ) released when 2 moles of calcium hydroxide is formed.
CaO(s) + H2O(1) + Ca(OH)2(s) + 65.2 kj
32.6 kJ
65.2 kJ
130.4 kJ
4.18 kJ

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.

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?