Use the solubility table for kbr below to determine the following:
solubility (g kbr / 100 g
h20)
65
80
90
100
110
temp (c)
20
40
60
80
100
is the dissolution of kbr an exothermic or endothermic process ?

As temperature goes up, solubility goes up. That means it's an endothermic reaction, because it takes in heat, and when there's more heat to take in, it reacts more.

Explanation:

As temperature goes up, solubility goes up. That means it's an endothermic reaction, because it takes in heat, and when there's more heat to take in, it reacts more.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error

the answers would be

the first one and the second one