In seawater, salt is the solute and water is the solvent.
It is B that one has the most mass



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Temperature of thermometer increases during the reaction, that means it receives heat. henceforth we can conclude that energy is released during the reaction that cleary mean that it's an Exothermic Reaction.
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
The answer is a as it is balanced and has the shown molecules