Question
The balanced chemical equation for potassium reacting with water is:
Answer: Option D
:
D
Potassium reacts with water to form potassium hydroxide along with hydrogen. The chemical equation for this reaction is given below:
K(s)+H2O(l)→KOH(aq)+H2(g)
We can see that:
Reactant
Product
Elements Symbol
No. of atoms
Elements Symbol
No. of atoms
K
1
K
1
H
2
H
3
O
1
O
1
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:
D
Potassium reacts with water to form potassium hydroxide along with hydrogen. The chemical equation for this reaction is given below:
K(s)+H2O(l)→KOH(aq)+H2(g)
We can see that:
Reactant
Product
Elements Symbol
No. of atoms
Elements Symbol
No. of atoms
K
1
K
1
H
2
H
3
O
1
O
1
Now in order to balance the equation the number of atoms on both reactants and the products side should be equal. By applying hit and trial method the balanced equation of the given reaction is:
2K(s)+2H2O(l)→2KOH (aq)+H2(g)
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