Answer:
Mass = 182.4 g
Explanation:
Given data:
Number of moles of Al₂O₃ = 3.80 mol
Mass of oxygen required = ?
Solution:
Chemical equation:
4Al + 3O₂ → 2Al₂O₃
Now we will compare the moles of aluminum oxide and oxygen.
Al₂O₃ : O₂
2 : 3
3.80 : 3/2×3.80 = 5.7
Mass of oxygen:
Mass = number of moles × molar mass
Mass = 5.7 mol × 32 g/mol
Mass = 182.4 g
The Nassau Din beat the the star has.
It may turn into a black hole if it has a high enough mass.
Answer:
A
Explanation:
If its going at a constant speed it will not accelarate wich means to speed up.
One chemical change would be baking the muffin.
One physical change would be chopping the fruits to add to the mixture
