3 years ago

A carbon atom is able to form four single covalent bonds because it

Chemistry

2 answers:

Lelu [443]3 years ago

6 0

What he said above ^^^

kati45 [8]3 years ago

3 0

has four valence electrons in its outermost energy level.
An organic compound in which a carbonyl group is bonded to two different carbon atoms is a(n) ketone.
All of the following release carbon into the atmosphere except the
sedimentation of dead organisms.

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P = 120 i / (i^2 + i + 9)

P = 120 i (i^2 + i + 9)^-1

The maxima point is obtained by taking the 1st derivative of the function then equating dP / di = 0:

dP / di = 120 (i^2 + i + 9)^-1 + (-1) 120 i (i^2 + i + 9)^-2 (2i + 1)

setting dP / di =0 and multiplying whole equation by (i^2 + i + 9)^2:

0 = 120 (i^2 + i + 9) – 120i (2i + 1)

Dividing further by 120 will yield:

i^2 + i + 9 – 2i^2 – i = 0

-i^2 + 9 =0

i^2 = 9

i = 3 (ANSWER)

Therefore P is a maximum when i = 3

Checking:

P = 120 * 3 / (3^2 + 3 + 9)

P = 17.14

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I'd say the correct answer is A

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