Answer:

Explanation:
Given that:

From equation (3) , multiplying (-1) with equation (3) and interchanging reactant with the product side; we have:

Multiplying (2) with equation (4) ; we have:

From equation (1) ; multiplying (-1) with equation (1); we have:

From equation (2); multiplying (3) with equation (2); we have:

Now; Adding up equation (5), (6) & (7) ; we get:



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(According to Hess Law)


Answer: beta, gamma, alpha
Explanation: Beta is weakest gamma is middle alpha is strongest
Answer
thus, 4 moles of oxygen gas (O2) would have a mass of 128 g.
I think it would be C.100.5cm or D.100.5ml hope that helps