Chemistry, 23.10.2020 20:10 janetshirinyan
Hess's law states that:
A. The overall enthalpy change for a reaction is independent of the route the reaction takes. B. Energy cannot be created nor destroyed, it can only change form.
O C. When the enthalpy changes under standard conditions, 1 mole of a substance is formed
from its elements.
O D. The enthalpy change when 1 mole of a substance undergoes complete combustion under
standard conditions is equal to molar masses of the compounds.
Answers: 1
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Hess's law states that:
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