Which of these is considered an anion? a) i- b) k+ c) ar d) nepls i need do do this now

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?

An ice cube with a volume of 45.0ml and a density of 0.9000g/cm3 floats in a liquid with a density of 1.36g/ml. what volume of the cube is submerged in the liquid

The point along a planet's orbit where it is closest to the sun is called the