Given the unbalanced equation: Cr0 + Sn2+ Cr3+ + Sn0
What is the coefficient in front of the Cr3+ when the
equation is balanced using smallest whole number coefficients?

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

In the experiment you asked to react hydrochloric acid and with sodium hydroxide. when measuring the volume of the reactants, which instrument would give the greatest precision.

The appropriate concentration for an iodine sanitizer is