Based on the activity series, which one of the reactions below will occur? zn (s) + mni2 (aq) ? zni2 (aq) + mn (s)sncl2 (aq) + cu (s) ? sn (s) + cucl2 (aq)2agno3 (aq) + pb (s) ? 2ag (s) + pb(no3)2 (aq)3hg (l) + 2cr(no3)3 (aq) ? 3hg(no3)2 + 2cr (s)3febr2 (aq) + 2au (s) ? 3fe (s) + 2aubr3 (aq)

The grooves or folds of the brain are called

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.

If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution