What is the mass in grams of a sample of Fe2(so4) that contains 3.35 x (10 )22 sulphate ions, SO

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

If you are told to get 100 ml of stock solution to use to prepare smaller size sample for an experiment, which piece of glassware would you use?

Which of the following is a solution a- brewed coffee b-tomato juice c- ranch salad dressing d- muddy water