Calculate the molarity of a kcl solution made by dissolving 21.2 g of kcl in a total volume of 500. ml. calculate the molarity of a kcl solution made by dissolving 21.2 g of kcl in a total volume of 500. ml. 0.142 0.284 7.03 0.569 none of the above

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-