Edgar is stranded on an island surrounded by an ocean of salt water. He is thirsty, but he knows that it is a bad idea to drink salt water. How could Edgar separate the salt out of the salt-water mixture?
A.
use chromatography
B.
pour the mixture through a screen
C.
evaporate off the water
D.
use a magnet to attract the salt

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

the link still does not work even when adding it to the url bar

explanation:

the answer is option a.