Question

2 fill in the blank 1 point balance the reaction shown below by selecting the correct coefficient. all boxes must be filled, so include coefficients of \1\ as necessary. type your answer... al2o3 → type your answer... al + type your answer... o2

Explanation:

Step1: Balance oxygen atoms

We have 3 oxygen atoms in $Al_2O_3$. To balance oxygen on the right - hand side, since oxygen is in $O_2$ form, we need to find the least common multiple of 2 and 3 for oxygen atoms. The balanced equation for oxygen gives us $2Al_2O_3$ and $3O_2$.

Step2: Balance aluminum atoms

With $2Al_2O_3$, we have 4 aluminum atoms on the left - hand side. So we need 4 aluminum atoms on the right - hand side, giving us $4Al$. So the balanced equation is $2Al_2O_3
ightarrow4Al + 3O_2$.

Answer:

2, 4, 3