rainbow22
When 135.7 g of ethylene (C2H4) burns in oxygen to give carbon dioxide and water, how many grams of CO2 are formed?



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hereweg0
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okay first things first. write your equation.

hereweg0
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\[C_{2}H _{4}+O _{2}=CO _{2}+H _{2}O\]

hereweg0
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balance it.. \[C _{2} H _{4} +3O _{2} =2CO _{2} +2H _{2} O \]

hereweg0
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dw:1349052411580:dwthen preform stoich...

hereweg0
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multiply top numbers...

hereweg0
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multipy bottoms...

hereweg0
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top/\[ \frac{ TOP}{ BOTTOM}=answer.\]

hereweg0
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answer is... well i got 425.670 grams CO2

rainbow22
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Oh, I got 459.3.. Your answer is correct thou.. let me check my wrk

hereweg0
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okay then

rainbow22
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yep. gots it thanks!

hereweg0
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anytime.