An object is placed in a graduated cylinder containing 15 mL of water, and the water rises to 30 mL. If the mass of the object is 54 g, what is the density of the object?

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.

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n

What type of organic molecule comprises the majority of a potato?