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Shkiper50 [21]
3 years ago
7

What are three ways in which carbon dioxide is put back into the earth?

Chemistry
1 answer:
xz_007 [3.2K]3 years ago
8 0

Answer:

Three ways that carbon is released back to the atmosphere are burning fossil fuels, land and ocean photosynthesis and respiration and volcanoes.

Hope this helps!

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4 Al + 3O2 → 2Al2O3 If 14.6 grams Al are reacted, how many liters of O2 at STP would be required?
melomori [17]

Answer: 9.08 L

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}\times{\text{Molar Mass}}    

\text{Moles of} Al=\frac{14.6g}{27g/mol}=0.54moles

4Al+3O_2\rightarrow 2Al_2O_3

According to stoichiometry :

4 moles of Al require  = 3 moles of O_2

Thus 0.54 moles of Al will require=\frac{3}{4}\times 0.54=0.405moles  of O_2

Standard condition of temperature (STP)  is 273 K and atmospheric pressure is 1 atm respectively.

According to the ideal gas equation:

PV=nRT

P = Pressure of the gas = 1 atm

V= Volume of the gas = ?

T= Temperature of the gas = 273 K      

R= Gas constant = 0.0821 atmL/K mol

n=  moles of gas= 0.405

V=\frac{nRT}{P}=\frac{0.405\times 0.0821\times 273}{1}=9.08L

Thus 9.08 L of O_2 at STP would be required

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What effect does removing predators have on prey?
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What effect does removing predators have on prey?

:It means that as they are removed the predators go hungry and they could become extinct.

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The G=56% because 44% is what’s left of the %
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