Question

what is the missing coefficient to make a balanced equation? 4al + 3c → ?al4c3 7 1 3 4

Explanation:

Step1: Count aluminum atoms on left - hand side

There are 4 aluminum (Al) atoms on the left - hand side of the equation ($4Al$).

Step2: Analyze aluminum atoms in product

In the product $Al_4C_3$, each formula unit has 4 aluminum atoms.

Step3: Determine coefficient

To balance the aluminum atoms, since there are 4 aluminum atoms on the left and 4 aluminum atoms in one formula unit of $Al_4C_3$, the coefficient of $Al_4C_3$ should be 1 to have the same number of aluminum atoms on both sides of the equation.

Answer:

1