Calculate the empirical formula of a compound that is 52.3% Cu, 21.4% Cr, and 26.3% O.

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

What is the morality of 2.50 l of solution that contains 1.85 mol of anhydrous sodium tetraborate?

What are the two basic types of satellites