A buffer solution is prepared by adding NH4CI to a solution of NH3 (ammonia).
NH3(aq) + H2O(l) = NH4+ (aq) + OH-(aq)
What happens if HCl is added?

A) shifts to reactants
B)remains the same
C) shifts to products

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