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The enthalpy of dissolution of salt in water is: a) Always positive; b) Always negative; c)...

The enthalpy of dissolution of salt in water is: a) Always positive; b) Always negative; c) the sign of enthalpy depends on salt type; d) dissolutuon of salt in water is not a thermodynamic process

Which of the following does not influence the speed of a chemical reaction? a) concentraion of reactants; b) nature of reactants; c) temperature; d) presence of catalyst; e) none of these

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