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11 April, 05:48

When aqueous solutions of HCl and NaOH are mixed together in a calorimeter, the temperature of the solution increases. The reaction is

endothermic, causing an increase in the kinetic energy of the solute particles.

endothermic, causing an increase in the kinetic energy of the water molecules.

(exothermic, causing an increase in the kinetic energy of the water molecules.)

exothermic, causing an increase in the kinetic energy of the solute particles.

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  1. 11 April, 06:29
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    This reaction is exothermic because the system (the aqueoud solution) is transferring heat to its surroundings (the calorimeter) so this eliminates two responses. Since the heat is being transferred to the surroundings, the water that's in the calorimeter in this case, it is causing the water molecules to heat up and thus an increase in the kinetic energy of the water molecules since temperature affects kinetic energy
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