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# Daniel's Responses in WyzAnt Answers

#### Factor The expression completely

36y4(y + 12)3 + y5(y + 12)4

+ more- less
Asked by Zafar from Cincinnati, OH
00

Answer: (x - 6) (x - 4)

Because,

-6 * -4 = 24

-6x + -4x = -10x

x * x = x^2

#### what is a secondary carbon?

Im not 100% sure of what is a secondary carbon or how i can identify one. the question was which of the following molecules are made up of only secondary carbons

• toluene
• 1,2 dimethylcyclopentane
• benzoic acid
• benzene
• propene
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Asked by Kimberly from Clifton, NJ
00

A primary carbon is a carbon atom bound to only one other carbon atom. A secondary carbon is a carbon atom bound to two other carbon atoms.

Ex of primary and secondary carbons in propane:  H3C-CH2-CH3

Both the 1st and 3rd carbons would be primary since they are bound to only one other carbon molecule.

The middle carbon would be secondary since it is bound to two different carbon atoms (the 1st and the 3rd).

Take a look at the diagram at http://en.wikipedia.org/wiki/Carbon–carbon_bond

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## Background Check Status for Daniel E.

Daniel E. passed a background check on 11/19/2012. You may run an updated background check on Daniel once you send an email.