The equation for the ph of a substance is ph = –log[h+], where h+ is the concentration of hydrogen ions. what is the approximate ph of a solution whose hydrogen ion concentration is 2 x10^-9

How many grams of mgbr2 are needed to produce 75g or metal?

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.

What is the formula of the ionic compound composed of calcium cations and chloride anions