How many formula units make up 36.0 g of magnesium chloride (MgCl2)? Express the number of formula units numerically.

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

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Which temperature scale measures water boiling at 100 degrees?