Steel sphere has a radius of 1.58 inches. If this steel has a density of 7.88 g/mL, what is the mass of the sphere in kilograms

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water