How many ml of a 4.50m nabr solution are needed to make 250 ml of a 0.75m solution of nabr?

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients

Which of these is a physical property