Counting By Weighing Part 1 5. # moles in sample

6. # atoms in sample

7. # atoms in 1.0 g of sample

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)

Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.