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Allushta [10]
3 years ago
6

On which part of the carbon cycle have humans had the greatest impact? storage of co2 in the oceans all of the answer options ha

ve been greatly impacted by humans. return of co2 to the atmosphere by burning of ancient organic matter deposition of organic carbon in deep sea sediments capture of atmospheric co2 by chemical weathering of rocks
Chemistry
1 answer:
yarga [219]3 years ago
4 0
Hello!

The part of the carbon cycle where humans had the greatest impact is the return of CO₂ to the atmosphere by burning of ancient organic matter.

The ancient organic matter is also called Fossil Fuels. Some Fossil Fuels are Petroleum and Coal. Fossil Fuels are used to power our society and are burned to provide energy for power plants and vehicles, and by burning them, Carbon Dioxide (CO₂) is produced, increasing the natural concentration of this compound in the atmosphere.

Have a nice day!
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The molecular mass of the compound is 132 amu. What is the molecular formula?
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For the following reaction, 9.30 grams of glucose (C6H12O6) are allowed to react with 13.8 grams of oxygen gas. glucose (C6H12O6
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Answer:

13.7 g of CO₂

Limiting reactant:  C₆H₁₂O₆

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Explanation:

We convert the mass of the reactants to moles, in order to find out the limiting reactant and the excess reagent

9.30 g / 180 g/mol = 0.052 moles of glucose

13.8 g / 32 g/mol = 0.431 moles of oxygen

The equation is:  C₆H₁₂O₆(s) + 6O₂ (g) → 6CO₂ (g) + 6H₂O (l)

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1 mol of glucose reacts with 6 moles of oxygen

Then, 0.052 moles of glucose must react with (0.052 . 6) /1 = 0.312 moles

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0.119 mol . 32 g / 1mol = 3.81 g

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Let's verify, the maximum amount of carbon dioxide that can be formed:

1 mol of glucose can produce 6 moles of CO₂

Therefore 0.052 moles of glucose will produce (0.052 . 6) /1 = 0.312 moles

We convert the moles to mass → 0.312 mol . 44 g /1 mol = 13.7 g

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3 years ago
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