K2SO4(aq) + Ba(NO3)2(aq) → 2KNO3(aq) + BaSO4(s)
2 answers:
Answer:
Explanation:
The chemical reaction presented above represents a <em>precipitation reaction</em> where interacts two solutions as a reactants and produce two products. When you want to know if the products remain in solution or precipitate as a solid you could concentrate your attention in the states of the different compounds, represented for subscript of letters in a parenthesis.
In the present exercise the potassium nitrate remains in solution owing to the state are (aq) that means aqueous. Barium sulfate
, by contrast, will precipitate out because of its state is (s) that means solid.
In summary, the state of compounds helps recognizing the precipitate in a reaction. For this case, the precipitate is .
Rgds!
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Answer:
Explanation:
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In this case, since silver is initially hot as it cools down, the heat it loses is gained by the liquid, which can be thermodynamically represented by:
That in terms of the heat capacities, masses and temperature changes turns out:
Since no phase change is happening. Thus, solving for the heat capacity of the liquid we obtain:
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