HA and HB are two strong monobasic acids.

25.0cm3 of 6.0 moldm-3 HA is mixed with 45.0 cm of 3.0 moldm-HB.

What is the H * (aq) concentration, in moldm-3, in the resulting solution?

A 1.9. C 4.1

B 2.1. D 4.5

Which statement is correct? The enthalpy of the reaction is - 184.6 kJ, and the reaction is exothermic. The enthalpy of the reaction is - 184.6 kJ, and the reaction is endothermic. The enthalpy of the reaction is 184.

Which change of state involves a release of energy? a) boiling c) condensation d) melting e) sublimation

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A sample of the sugar d-ribose (C5H10O5) of mass 0.727 g was placed in a calorimeter and then ignited in the presence of excess oxygen. The temperature rose by 0.910 K. In a separate experiment in the same calorimeter, the combustion of 0.

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Which of the Following Will result in increasing temperature of s gas