PLEASE HELP ME WITH THIS QUESTION magnesium chloride crystallizes as a hydrate, MgCl2. xH20. When 20.3g of the hydrate were heated to a constant mass, 9.5g of the anhydrous salt remained as shown by the equation below. MgCl2.xH20 -> MgCl2 + xH2O, find x​

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.

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver