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murzikaleks [220]
3 years ago
11

Given the following reactions and subsequent ∆H values, what is the ∆H for the reaction below? 4CO2(g) + 2H2O(g) 2C2H2(g) + 5O2(

g)
Chemistry
1 answer:
melisa1 [442]3 years ago
7 0
The problem ask on which of the following reactions and subsequent values and the value is given on you question. Base on your data and also to my formulation, solution and further simplification about the problem and the given values, i came up with an answer of <span>∆Hrxn = 5∆Hf(O2(g)) + 2∆Hf(C2H2(g)) - 2∆Hf(H2O(g)) - 4∆Hf(CO2(g)).</span>
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The complete question is shown on the first uploaded image

Answer:

X  is Be

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Z  is  O            

Explanation:

In order to understand the solution, we need to that the an element form a bond based on

1  The number of valence electron available in its atom

2 The  number of electron it require to attains its stable state i.e its Octet  state

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Considering the second  element              

      We see that  Y is donating  three valence electron in its atom and it is donating it to 3  Cl as Cl  only requires a single electron to achieve its stable state    

    Now looking  option we can see that  B has three valence  electron in it atom and in order for it to attain its stable state it needs to release the valence electron so the correct option for this question is B

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   Therefore the correct option to this question is  O                  

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