1. Was there supercooling? would you expect the water or the sugar solution to have the most supercooling (see the introduction)? why?.

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

Compare and contrast physical changes with chemical changes.

Which metals are called noble metals