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lubasha [3.4K]
3 years ago
6

What is the main gas found in the air we breathe?

Chemistry
2 answers:
Sergio [31]3 years ago
7 0
Carbon dioxide is the main gas 

Dmitry_Shevchenko [17]3 years ago
6 0
The actual answer is NITROGEN!!!
It makes up 79% of our air, followed by oxygen at 21% then relatively closely followed bt Carbon Dioxide at 0.03%

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At which temperature is water in its gas phase (water vapor)?
tankabanditka [31]
Answer: (Assuming we’re going by degrees Fahrenheit) I’d say 140.

Explanation: -40 would be beyond freezing point for water which is 32 degrees Fahrenheit and 40 would nearly be freezing point. For water to transform into its gas phase, the temperature would need to be greater. Therefore, 140 degrees Fahrenheit makes the most sense.

Although I did search it up and 212 degrees Fahrenheit (100 degrees Celsius) is the proven temperature at which water transforms into water vapor so... not sure if there’s more to the question or I’m interpreting the question wrong.
4 0
3 years ago
for an electron to move from an energy level that was close to the nucleus to an energy level that is far from the nucleus would
marishachu [46]

Answer:

it would need to lose energy

Explanation:

I don't really have an explanation

7 0
3 years ago
Jonathan raised 60 goats, then entered into a series of business transactions. He traded all the goats for sheep at an exchange
Leto [7]

Answer:

just awser

eeww

Explanation:

4 0
3 years ago
Read 2 more answers
Which is NOT an application of chemistry to life? *
rodikova [14]
I’m pretty sure it’s D
4 0
3 years ago
What is the final pressure (expressed in atm) of a 3.05 L system initially at 724 mm Hg and 298 K, that is compressed to a final
maksim [4K]

Hey there!:

V1 = 3.05 L

V2 = 3.00 L

P1 = 724 mmHg

P2 = to be calculated

T1 = 298 K

T2 = 273 K

Therefore:

P1*V1  / T1  = P2*V2 / T2

P2 = ( P1*V1 / T1  )   * T2 / V2

P2 = 724 * 3.05 * 273 / 298 * 3.00

P2 = 602838.6 / 894

P2 = 674.31 mmHg

1 atm ----------- 760 mmHg

atm ------------- 674.31 mHg

= 674.31 * 1 / 760

= 0.887 atm

Hope this helps!

5 0
4 years ago
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