Question

What are the coefficients that will balance the skeleton equation below?

AlCl3 + NaOH → Al(OH)3 + NaCl

a) 3, 1, 3, 1
b) 1, 3, 1, 3
c) 1, 1, 1, 3
d) 1, 3, 3, 1

Answer 1

B

Step-by-step explanation:

AlCl3 + NaOH → Al(OH)3 + NaCl

a) 3, 1, 3, 1

b)1, 3, 1, 3

c) 1, 1, 1, 3

d) 1, 3, 3, 1

cause there are 3Cl= AlCl3; NaCl must be 3 as well

So answers (a) and (d) are wrong

Then cause it is 3NaCl and there are (OH)3 so it must be 3NaOH.