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Alexus [3.1K]
3 years ago
14

PLEASE HELP PICTURE BELOW

Chemistry
1 answer:
seraphim [82]3 years ago
8 0

Answer:

A.      

sorry if  it's wrong

Explanation:

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The reaction is<span>
C</span>₂H₄ + O₂ → CO₂ + H₂O<span>

To balance the equation, both side have same number of elements. Here,</span>

In left hand side has                                            in right hand side has

           4 H atoms                                                       2 H atoms 

           2 C atoms                                                       1 C atom 

<span>           2 O atoms                                                       3 O atoms 

First, we have to balance number of C atoms and number of H atoms in both side.  
To balance C atoms, '2' should be added before CO</span>₂ and to balance H atoms, '2' should be added before H₂<span>O. 
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After balancing the equation should be,</span>

C₂H₄<span> + 3O</span>₂<span> → 2CO</span>₂<span> + 2H</span>₂O


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</span>

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The mass of the material, <span>m</span>

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Melting, in which heat of fusion is needed.
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