Answer:
4.13 moles of Fe.
Explanation:
Given data:
Moles of iron produced = ?
Moles of Fe₂O₃ = 3.5 mol
Moles of CO = 6.2 mol
Solution:
Chemical equation:
Fe₂O₃ + 3CO → 2Fe + 3CO₂
Now we will compare the moles of iron with CO and Fe₂O₃.
Fe₂O₃ : Fe
1 : 2
3.5 : 2/1×3.5 = 7 mol
CO : Fe
3 : 2
6.2 : 2/3×6.2 = 4.13 mol
The number of moles of iron produced by CO are less it will limiting reactant.
Thus, moles of iron formed in given reaction are 4.13 moles.
Solid liquid and gas
when it changes from a:
solid
to a
liquid: melting, fusion
gas: sublimation
liquid
to a
solid:freezing
gas:vaporization
gas
to a
solid:condensation, deposition
liquid: condensation, liquefacation
In an unsaturated solution, the amount of solute is less than required in the solution. So, it can dissolve more solute.
Solid state is more dense than the liquid state as the molecules are closely packed in a solid.
Density is temperature dependent as with increase in temperature volume increases. So, the density decreases.
Like dissolves like. A polar solute will dissolve in a polar solvent.
So, the correct statement among the given options is B.For most substances, the solid state is more dense than the liquid state.
a process where the scientists performing the research influence the results, in order to show a certain result
It is false it is a unit of wieght
brain list please!!!!!
