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evablogger [386]
3 years ago
9

Which statement best explains why a carbon atom can bond with itself easily

Biology
2 answers:
stellarik [79]3 years ago
5 0

it has four valence electrons

andre [41]3 years ago
4 0
It has 4 valence electrons :)
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Earth is heated by global warming. How is the water cycle affected by global warming?
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Explain how the ozone layer forms, how human activities have damaged it, and the consequences of the destruction of the ozone la
Vikki [24]

Answer:

Ozone is formed in the stratosphere naturally.

High energy solar radiation strike the oxygen atoms O2, the two atoms split apart. The freed atom collides with another oxygen atom O2 forming O3 (Ozone)

Ozone layer is destroyed when chloroflourocarbons and halons.

CFCs and halons cause chemical reactions that break down ozone molecules. Consequences ofnozone depletion are that UV radiations are not filtered and they reach the earth causing damage to eyes and skin.

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8 0
3 years ago
o what temperature in oC must a 0.500 mole sample of O2 gas be adjusted in order to achieve a pressure of 4.00 atm in a 4.25 L c
Nesterboy [21]

Answer:

141C

Explanation:

We need to use the ideal gas law to solve this question. Ideal gas law: PV = nRT

P = pressure = 4.00 atm = 4.00 × 101.325 = 405.3 kPa (pressure needs to be converted to kilopascals)

V = volume = 4.25L

n = number of moles = 0.500

R = gas constant = 8.314 mol/K (found om chemistry data sheet)

T = temperature = ? unknown

Before any other steps are taken, we need to rearrange the the ideal gas law formula to make T the subject.

PV/nR = T

Now we can substitute the values.

(405.3 × 4.25) ÷ (0.500 × 8.314) = 414.3673322107 (answer in kelvin)

Convert 414.3673322107 Kelvin to Celsius.

0C = 273.15K (found on chemistry data sheet)

414.3673322107 - 273.15 = 141.2173322107C

141.2173322107 to nearest C = 141C

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<span>b. signal interpreter</span>
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