Describe the relationship of the atoms shown by: a) the rearrangement of atoms is a chemical change. b) stability of the atoms in the molecule means a physical change. c) a change in state of matter from a liquid to gas is a physical change. d) a change in state of matter from solid to liquid is a physical change

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa