A 135-g sample of seawater is evaporated to dryness, leaving 4.73g of solid residue (the salts formerly
dissolved in seawater). Calculate the mass percent of solute present in the original seawater. Your
response must include a correct numerical setup and the calculated result. (3 points)

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.

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

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