Question

Which sequence of coefficients should be placed in the blanks to balance this equation

Answer 1

4 , 3, 2

Explanation:

                       Al + _O₂   →   _Al₂O₃

To balance  a chemical equation, the law of conservation of matter must strictly be followed.

It shows that the number of atoms on both sides of the expression must be the same.

Let us set up a simple mathematical equation to solve this problem:

          aAl +  bO₂   →   cAl₂O₃

a, b and c are the coefficients that will balance the equation:

   conserving Al:    a = 2c

                       O:    2b = 3c

         let c = 1

               a = 2

               b = $\frac{3}{2}$

multiply through by 2:

        a =4, b = 3, c = 2

        4Al +  3O₂   →   2Al₂O₃

learn more:

Balanced equation brainly.com/question/2612756

#learnwithBrainly