Yeah no one is gonna read all that babe.
Distillation of a mixture
Answer:
the process of returning a land area to the condition it was in before humans used the land
Explanation:
Reclamation refers to the process of returning a disturbed ecosystem to its original status prior to the disturbance. Often times, the disturbance regimes that change the conditions of the ecosystem are created by humans.
<em>Reclamation is unlike reforestation in that the latter involves the process of planting trees in order to reestablish forest lands, not necessarily return the land to its previous status.</em>
Reclamations are often done to return lands to the original flora and fauna status before the disturbance regime.
Answer:
10
Explanation:
Given endpoints:
E (-2,2) and F(4, -6)
To find the distance between two points;
Use the expression below;
D =
x₁ = -2,
x₂ = 4
y₁ = 2
y₂ = -6
Insert the parameters and solve;
D =
D = = 10
Answer:
mass of Fe = 4.86 g
Explanation:
Balanced chemical equation
Sb₂S₃ + 3Fe → 2Sb + 3FeS
Given data from eq.
moles of iron = 3 mol
mas of iron = ?
moles of antimony trisulfide = 1 mol
mass of antimony trisulfide = 10 g
Solution
1st we will find out the mole ratio of Sb₂S₃ and Fe from balanced chemical equation
Sb₂S₃ : Fe
1 : 3
Now we find out number of moles of citric acid Sb₂S₃ from the given mass
<em> moles = mass / molar mass </em>
moles = 10 g / 339.7 g/mol
moles = 0.029 mol
Now we find out moles (x) of iron needed for 0.029 mol of antimony trisulfide
from the balanced chemical equation the mole ratios are:
1 : 3
0.029 : x
<em>Cross multiply these ratios </em>
3 × 0.029 = 1x
0.087 = 1 x
x = 0.087 mol
Now we will find out the mass of iron
mass = moles × molar mass
mass of Fe = 0.087 mol × 55.845 g/mol
mass of Fe = 4.86 g