Balancing of redox equations in basic and acidic medium

How do you balance redox reactions in acidic and basic mediums?

Acidic Conditions

Solution.

Step 1: Separate the half-reactions. ...

Step 2: Balance elements other than O and H. ...

Step 3: Add H2O to balance oxygen. ...

Step 4: Balance hydrogen by adding protons (H+). ...

Step 5: Balance the charge of each equation with electrons. ...

Step 6: Scale the reactions so that the electrons are equal.

Explanation:

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

1 a

2 d

3 a

4 c

explanation: