keaudresp57ie1
06.07.2020 •
Chemistry
What is enthalpy?
O the heat given off during an exothermic reaction
O the heat absorbed or released during a phase change
o the heat content of a system at constant pressure
o the heat absorbed during an endothermic reaction
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Ответ:
the heat content of a system at constant pressure.
Explanation:
Enthalpy is defined as the heat content of a system at constant pressure.
It is the heat absorbed or released during a reaction at constant pressure,denoted as ΔH.
Ответ:
3, the answer is 3 i think
Explanation:
if it takes three to bonnd with hydrogen, and phosporus id within hydrogens family, i would think it is also three