One mole of an atom of a substance is equal to the: a Gram atomic mass of the element
b Gram molecular mass of the element
C Atomic number of the element
d None of the above

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.

Condensation happens when water vapor cools. true or false? ?

Can someone me out on this question for my national 5 chemistry homework