What mass, in grams, of CaCl2 will be required to prepare the above solution? (If possible show process please)

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

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.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?