What is the solubility of sugar if 60 gm of sugar can be dissolved in 300 gm        of water at 30°C

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils

Acertain atom has 22 protons and 19 electrons. this atom loses an electron. the net charge on the atom is now 4+1+01-4-. if this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be 3+2+02-3-.