Question

Which sequence of coefficients should be placed in the blanks to balance this equation? _Al + _O2 mc031-1.jpg _Al2O3

Answer 1

Hey there!

To balance this equation, you will need:

6Al + 3O₂ = 3Al₂O₃

I hope this helps!
Brady

Answer 2

Answer: The sequence of coefficients is 2 , 3 and 2 in
`2Al+3O_2\rightarrow 2Al_2O_3`

Explanation:

According to law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products must be same as the mass of reactants.

For this, the number of atoms of each element must be same on both sides of the equation. Thus a balanced chemical equation is written.

`2Al+3O_2\rightarrow 2Al_2O_3`