1. Barium ions carry a 2 + charge, and nitrogen ions carry a 3- charge. What would be the chemical formula for the ionic compound barium nitride? 2. How much sodium chloride, in grams, is needed to...

1. Barium ions carry a 2⁺
charge, and nitrogen ions carry a 3- charge. What would be the chemical formula for the ionic compound barium nitride?

2. How much sodium chloride, in grams, is needed to make 15 L of a solution that has a concentration of 3.0 g of sodium chloride per liter of solution?