4. Calculate the molar concentrations of 1.00ppm solutions of each of the following:
(a) AgNO3​

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

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?

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury