If you had one mole of plain M&Ms, they would equal the mass of how many African elephants? (The mass of an African elephant is 7000 kg and one plain M&M is 0.87g)

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o