Answer to Question #297856 in General Chemistry for Mss alandhe

Question

Balance this equation by algebraic method Al+o2=Al3o2

Answer 1

Step 1: Label each compound with a variable;

aAl + bO2 = cAl3O2

Step 2: Create a system of equations, one per element;

Al: 1a + 0b = 3c

O : 0a + 2b = 2c

Step 3: Solve for all variables using substitution method;

a= 3

b= 1

c= 1

Step 4: Substitute coefficients and verify results;

3Al + O2 = Al3O2

L R

Al : 3 3

O : 2 2