THE COPPER SULFATE SOLUTION HAD BEEN PREPARED BY DISSOLVING 6.36g OF SOLID COPPER SULFATE IN WATER AND MAKING THE VOLUME UP TO 250cm

Only one reactant yields 2 or more products. meaning you will only have 1 product and it will break down into 2 or more products. eg. h2o -> h2 + o2

The answer is celsius 

Ithink that the use of creativity in the sciences entails that one produce something out of nothing or from another thing. with this, i think that the he wrote down his results as four parts of the atomic theory is the manifestation of the  creativity of john dalton.