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alexdok [17]
4 years ago
14

Why are chemical equations balanced?​

Chemistry
1 answer:
Inessa05 [86]4 years ago
3 0

Answer:

Chemical equations need to be balanced so that they follow the law of conservation of mass.

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Starting with acetylene and bromoethane, show how you would use reagents from the table to synthesize 3-hexanone.
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solution:

A = 192 x (1/2) ^ (15/5) = 192 x (1/2) ^3 = 192 x 1/8 = 24 mg

 Starting by hitting acetylene with NaNH2 to deprotonate, this C-- will attack the C connected to the Br Sn2 style to lengthen the chain by two carbons.  

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3 years ago
What chemical molecules are required for cellular respiration?
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3 years ago
A 170.0 g sample of an unidentified compound contains 29.84 g sodium, 67.49
GREYUIT [131]

The empirical formula : Na₂Cr₂O₇

<h3>Further explanation</h3>

Given

170 g sample contains :

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Divide by 1.297

Na : Cr : O = 1 : 1 : 3.5 = 2 : 2 : 7

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