Given the reaction: Zn(s) + 2 HCI(aq) Zn2+(aq) + 2 Cl–(aq) + H2(g) If the concentration of HCl(aq) is increased, what happens to the frequency of reacting collisions

Draw the lewis dot structure for each of the following polyatomic ions

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.

Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol