2. What does a car weigh if its tires cover an area of 4 square meters and each tire exerts a pressure of 1000 N/m2 on the ground?

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.

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude