A calorimeter contains 25.0 mL of water at 15.0 ∘C . When 1.80 g of X (a substance with a molar mass of 65.0 g/mol ) is added, it dissolves via the reaction X(s)+H2O(l)→X(aq) and the temperature of the solution increases to 29.5 ∘C . Calculate the enthalpy change, ΔH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that of water [4.18 J/(g⋅∘C)], that density of water is 1.00 g/mL, and that no heat is lost to the calorimeter itself, nor to the surroundings.

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explanation:

let that person have a turn to speak : )

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

answer; 4 electrons;