CHEM PLZ PLZ HELP ;
For the reaction: 2NO2(g) → N2O4(l),
the ΔH of the reactants, two moles o...
Chemistry, 10.06.2020 10:57 angelmilla
CHEM PLZ PLZ HELP ;
For the reaction: 2NO2(g) → N2O4(l),
the ΔH of the reactants, two moles of NO2 (g), is + 66 kJ/mol,
and the ΔH of the products, N2O4 (l), is -20 kJ/mol.
Which of the following shows the ΔH (change in enthalpy) for the reaction as a whole?
Question 8 options:
ΔrxnH =(- 20 kJ/mol) / (+66 kJ/mol)
ΔrxnH = (+66 kJ/mol) + (- 20 kJ/mol)
ΔrxnH =(-20 kJ/mol) - (+ 66 kJ/mol)
ΔrxnH =(+66 kJ/mol) - (- 20 kJ/mol)
Answers: 3
Chemistry, 21.06.2019 22:30
Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know
Answers: 2
Chemistry, 22.06.2019 18:30
Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years
Answers: 2
Chemistry, 23.06.2019 08:30
According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.
Answers: 1
Mathematics, 07.04.2021 17:20
Mathematics, 07.04.2021 17:20
Social Studies, 07.04.2021 17:20
English, 07.04.2021 17:20
Mathematics, 07.04.2021 17:20
Mathematics, 07.04.2021 17:20
English, 07.04.2021 17:20
Chemistry, 07.04.2021 17:20