The equation below shows the decomposition of lead nitrate. how many grams of oxygen are produced when 4.60 g no is formed? pb(no3)2 (s) → pbo (s) + no2 (g) + o2 (g) show all the work

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.

On the periodic table, elements are arranged by which of the following. a. mass numbers. b. increasing atomic number. c. alphabetical order. or d. density

Which of the following notations would be the appropriate and final way to display the formula for magnesium chloride a. mgcl2 b. mg+2cl–1 c. mgcl2 d. mgcl