Difference between Shell and sub-shell .

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.