consider the unbalanced equation for the oxidation of aluminum. _al + _o₂ → _al₂o₃ which sequence of…

consider the unbalanced equation for the oxidation of aluminum. _al + _o₂ → _al₂o₃ which sequence of coefficients should be placed in the blanks to balance this equation? 2, 3, 1 1, 3, 2 4, 3, 2 3, 2, 3

consider the unbalanced equation for the oxidation of aluminum. _al + _o₂ → _al₂o₃ which sequence of coefficients should be placed in the blanks to balance this equation? 2, 3, 1 1, 3, 2 4, 3, 2 3, 2, 3

Answer

Explanation:

Step1: Balance aluminum atoms

On the right - hand side, there are 2 aluminum atoms in $Al_2O_3$. On the left - hand side, we have $Al$. To balance the aluminum atoms, if we put 4 in front of $Al$, we have 4 aluminum atoms on the left. $4Al+O_2\rightarrow 2Al_2O_3$

Step2: Balance oxygen atoms

On the right - hand side, in $2Al_2O_3$, there are $2\times3 = 6$ oxygen atoms. On the left - hand side, in $O_2$, if we put 3 in front of $O_2$, we have $3\times2=6$ oxygen atoms. $4Al + 3O_2\rightarrow2Al_2O_3$

Answer:

4, 3, 2