If a material contains three elements joined in a fixed proportion, it is a(an) _____.
d.) compound
Answer:
First convert volume given into same unit.
Therefore 1000 mL =1L
1000mL=1L
25.0mL=?
(25.0×1)÷1000=0.025L
but using the equation;M1×V1=M2×V2
M1=14.2M
V1=0.025L
M2=?
V2=0.5L
Therefore;. 14.2×0.025=M2×0.5
M2=(14.2×0.025)÷0.5
M2=0.71M.
The wind blowing a sand dune is an example of the Earth's atmosphere interacting with its geosphere. This can also be an example of wind erosion! the wind is moving the sand dunes from on position or area to another.
Answer:
Option A. The reaction would shift to balance the change.
Explanation:
According to Le Chatelier's principle, if an external constrain such as change in concentration, temperature or pressure is imposed on a chemical system in equilibrium, the equilibrium will shift in order to neutralize the effect.
If the equilibrium of a weak acid dissociation reaction is upset, the equilibrium will shift to balance the change as explained by Le Chatelier's principle.
Answer:
2646.13g of Al or 2.65kg of Al
Explanation:
Equation of reaction
2Al₂O₃ → 4Al + 3O₂
From equation of reaction,
2 moles of Al₂O₃ will produce 4 moles of Al
Number of moles = mass / molar mass
Mass = number of moles * molarmass
Molar mass of Al₂O₃ = 101.96g/mol
Mass = 2 * 101.96 = 203.92g
Mass of Al = number of moles (4) * molar mass of Al
Mass = 4 * 26.98
Mass = 107.92g
203.92g of Al₂O₃ = 107.92g of Al
5000g of Al₂O₃ = x g of Al
X = (5000 * 107.92) / 203.92
X = 2646.13g of Al
X = 2.65Kg of Al
