K - H 2 O - KOH - H 2 - How to balance this equation without hit and trial method

Step 1 balance the metal atoms on both side. So, in given equation metal is K and is equal in both side so no change in equation. K + H2O → KOH+H2 Step 2 Bala ...

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Byju's Answer

Standard IX

Chemistry

Preparation of Hydrogen from Steam

K + H 2 O -> ...

Question

K + H₂O -> KOH + H₂ . How to balance this equation without hit and trial method.

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Solution

Step-1 balance the metal atoms on both sides.
So, in the given equation metal is K and is equal on both sides so no change in the equation.
K + H₂O → KOH+H₂
Step-2 Balance the oxygen atom. Oxygen is also the same in both side ,so no change in equation
K + H₂O → KOH+H₂
Step-3 Balance the Hydrogen atoms
K + 2H₂O → 2KOH+H₂
After balancing the Hydrogen atom, the Potassium atom and Oxygen atom get unbalanced, which can be further balanced as;
2K + 2H₂O → 2KOH+H₂

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K + H2O -> KOH + H2 . How to balance this equation without hit and trial method.

K + H₂O -> KOH + H₂ . How to balance this equation without hit and trial method.