What is the difference between an amoeba and a hydra?

The most efficient way to establish the best possible economizer position is to measure

What does x represent in the formula for the compound xcl4?

Asolution is made by dissolving 2.3 moles of sodium chloride (nacl) in 0.155 kilograms of water. if the molal boiling point constant for water (kb) is 0.51 °c/m, what would be the boiling point of this solution? show all the steps taken to solve this problem.