Under which conditions will sugar most likely dissolve fastest in a cup of water? A. A sugar cube with stirring at 5°C
B. A sugar cube without stirring at 15°C
C. Sugar crystals with stirring at 15°C
D. Sugar crystals without stirring at 5°C

C) Sugar crystals with stirring at 15 degrees Celsius

Explanation:

Increasing surface area AKA, crystallizing a substance helps it reaction speed, other factors that help are increasing temperature and stirring.

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

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