A) Manish and Revathi are making lemon Juice for themselves. Manish wants cold juice, so he adds sugar to cold water. Revathi adds the same amount of sugar but the water is at room temperature. In which case will the sugar dissolves faster and why? 1. Name the separation technique that can be used to separate sand from pebbles.
2. Explain the principle behind this separation method.​

the answer would be c

i would say b

explanation:

but i think i would need more information than that

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.