Question

how to balance k+h2o=koh+h2

Answer 1

2k+2h2o=2koh+h2 is the balanced equation

Answer 2

Balancing equation

Explanation:

• In the given reaction, potassium is reacting with water to produce potassium hydroxide and hydrogen gas.
• The chemical equation involved is

$K + H_2O\rightarrow KOH + H_2$

• When the number of atoms for the reactant side is calculated it gives:

K = 1

H = 2

O = 1

• When the number of atoms for the product side is calculated it gives:

K = 1

H = 3

O = 1

• The obtained result indicates that the hydrogen atom is not equal on both sides. Thus the reaction is not balanced.
• The balanced reaction has the number of atoms involved in reaction in reactants as well as the product is equal.
• To make both side equal some changes must be made as shown in the balanced equation is

$2K+2H_2O\rightarrow 2KOH + H_2$

• For the above equation, the number of atoms in the reactants is:

K = 2

H = 4

O = 2

• The number of atoms in products is:

K = 2

H = 4

O = 2

• As the number of atoms in the reactants side is equal to the number of atoms in the product side, the reaction is balanced.

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