Question

what is the missing coefficient to make a balanced equation? ?al + c → al4c3 be sure the equation is balanced before entering the coefficients. 4 7 1 3

Explanation:

Step1: Balance aluminum atoms

To get 4 aluminum atoms on the right - hand side in $Al_4C_3$, we need 4 aluminum atoms on the left - hand side. So the coefficient of $Al$ should be 4.
$4Al + C
ightarrow Al_4C_3$

Step2: Balance carbon atoms

To get 3 carbon atoms on the right - hand side in $Al_4C_3$, we need 3 carbon atoms on the left - hand side. So the coefficient of $C$ is 3. The balanced equation is $4Al+3C
ightarrow Al_4C_3$.

Answer:

4