Calculations - how many mmoles of oxalate, c2o2−4c2o42−, in trial.

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?

Why can water dissolve many ionic compounds

Explain how to convert from one unit to another in the metric system.