Question

MnO2+HCl--->MnCl2+H2O+Cl2 balance using algebraic method

Answer 1

Explanation:

Balanced chemical reaction is

MnO2+4HCI--->MnCl2+2H2O+Cl2

Hope it helps you.

Answer 2

Answer:

4HCl + MnO2 = MnCl2 + cl2 + 2H2O

First thing we do is give each compound a letter coefficient:

aMnO4 + bHCl → cMnCl2 + dCl + eCl2 + H2O

write algebraic rules for each element.

Mn: a = c

O: 4a = f

H: b = 2f

Cl: b = 2c + d + 2e

b = 2a + a + 2e

b = 3a + 2e

We can also get rid of b using the rule for H:

2f = 3a + 2e

And finally, get rid of f using the rule for O:

2(4a) = 3a + 2e

8a = 3a + 2e

5a = 3a, hence a = 5 and b = 3

Having now found two coefficients, substituting into the rules for Cl and O and using the fact that a = c = d = 2 solves for b and f:

b = 2c + d + 2e

b = 3a + 2e

b = 3 x 2 + 2 x 5

∴ b = 16

4a = f

∴ f = 8

4HCl + MnO2 = MnCl2 + cl2 + 2H2O

hope it will help you.....