Question 3 (1 point)
What is the mass percent obtained by mixing 255 g of sugar with 135 g of water?
O
a
1.9%
6.5%
.65 %
65%

65%

Explanation:

-Given the mass of the solute, sugar is 255 g and of the solvent, water is 135g.

-We apply the percent by mass formula as below:

Hence, the mass percent is 65%

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.

the answer is 75.0%.