Answer:
C.
Explanation:
...........................
33.2 g of iron (Fe)
Explanation:
We have the following chemical reaction in which iron react with oxygen to form the iron (III) oxide:
4 Fe + 3 O₂ → 2 Fe₂O₃
number of moles = volume / 22.4 (L/mole)
number of moles of O₂ = 10 / 22.4
number of moles of O₂ = 0.446 moles
Taking in account the chemical reaction we devise the following reasoning:
if 4 moles of Fe react with 3 moles of O₂
then X moles of Fe react with 0.446 moles of O₂
X = (4 × 0.446) / 3 = 0.595 moles of Fe
number of moles = mass / molar weight
mass = number of moles × molar weight
mass of Fe = 0.595 × 55.8
mass of Fe = 33.2 g
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number of moles
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What causes the seasons?
The seasons are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels through its year-long path around the sun.
The skeletal structure of an organic compound is an abbreviated representation of its molecular structure, they are quick and easy to draw.
For example, the following image shows the skeletal structure of a compound:
The peaks represent the carbons. We must remember that carbon can have a maximum of 4 bonds.
Now, I will show you how is the structure of this specific compound:
This is ternary alcohol, called 2-methyl-2-butanol. If you see carefully, you will notice that each carbon has 4 bonds. The functional groups present will be OH. The skeletal structure will be:
