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worty [1.4K]
3 years ago
5

Which statement is true regarding the diagram of circle P? The sum of y and z must be 2x. The sum of y and z must be x. The diff

erence of z and y must be 2x. The difference of z and y must be x
Chemistry
2 answers:
olga2289 [7]3 years ago
6 0

Answer:

The difference of Z and Y must be 2x

Explanation:

Ipatiy [6.2K]3 years ago
6 0

Answer:

A

Explanation:

edge

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dsp73
The delta H of -484 kJ is the heat given off when 2 moles of H2 react with 1 mole of O2 to make 2 moles of H2O. You don't have anywhere near that much reactants, only 1/4 as much

<span>actual delta H = 0.34  moles H2 x (-484 kJ / 2 moles H2) = 823 kJ </span>

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The overview of the subject is outlined underneath in the summary tab.

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