Asample of hydrated magnesium sulfate has a mass of 4.052 g. after it is heated, it has a mass of 1.979 g. what is the percentage by mass of water in the hydrate?

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

Which substance can be broken down by chemical means