Question

1
Complete and balance the following equations : Al + NaOH +___--->_____+____

Answer 1

Al + 3NaOH = Al(OH)₃ +3Na

Step-by-step explanation:

The reaction is given as:

Al + NaOH = Al(OH)₃ + Na

This reaction is called a single displacement reaction in which one specie displaces another from a solution.

To balance the equation:

aAl + bNaOH = cAl(OH)₃ + dNa

a, b, c and d are the coefficient that will balance the equation:

Conserving Al;

a = c

Conserving Na;

b = d

Conserving O;

b = 3c

Conserving H;

b = 3c

Let a = 1, c = 1, b = 3 and d = 3

Al + 3NaOH = Al(OH)₃ +3Na