Which leader issued strict punishments and a system, wherby colonists could be given land if they agreed to farm it in the colony of jamestown?

a) john smith

b) john white

c) john rolfe

d) thomas dale

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.