multiple choice question
which of the following is the correct way to write the product of 2 al + 3 i2 in a balanced equation?
lower case i's will represent the iodine, i.

3 al + 2 i

2 (al i3)

3 (al i2)

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