Name the most appropriate method of preparing each of the following salts.

A. magnesium chloride
B. lead (II) sulfate
C. anhydrous iron (III) chloride
D. potassium nitrate

(Please help and don't comment if you don't know the answer for points!!!)​ ​

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

What is the mass of 0.46 mol of mgcl2

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