The balanced chemical equation for potassium reacting with water is-2K-s- - 2H-2O-l- nbsp-2KOH-aq- nbsp- H-2-g-2K-s- - H-2O-l- 2KOH-aq- H-2-g-K-s- H-2O-l-KOH-aq- nbsp- H-2-g-K-s- - 2H-2O-l- nbsp-KOH-aq- nbsp- H-2-g-

The correct option is A 2K(s) + 2H_2O(l) → nbsp; 2KOH(aq) nbsp;+ H_2(g)Potassium reacts with water to form potassium hydroxide along with hydrogen. The che ...

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Byju's Answer

Standard X

Chemistry

Representation of a Chemical Equation

The balanced ...

Question

The balanced chemical equation for potassium reacting with water is:

K (s) + 2 H_{2} O(l) \to KOH(aq) + H_{2} (g)

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2 K (s) + H_{2} O(l) \to 2 KOH(aq) + H_{2} (g)

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K (s) + H_{2} O (l) \to KOH(aq) + H_{2} (g)

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2 K (s) + 2 H_{2} O (l) \to 2 KOH(aq) + H_{2} (g)

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Solution

The correct option is D $2 K (s) + 2 H_{2} O (l) \to 2 KOH(aq) + H_{2} (g)$
Potassium reacts with water to form potassium hydroxide along with hydrogen. The chemical equation for this reaction is given below:

$K (s) + H_{2} O (l) \to KOH(aq) + H_{2} (g)$

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:
$2K (s) + {2H}_{2} O (l) \to 2KOH (aq) + H_{2} (g)$


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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Similar questions

2 K (s) + 2 H_{2} O (l) \to 2 K O H (a q) + H_{2} (g)

3.0

moles of potassium react with excess water, what volume of hydrogen gas will be produced?

Q. Heat of formation of KOH(s) using the following equations :

K (s) + H_{2} O (l) + (a q) ⟶ K O H (a q) + \frac{1}{2} H_{2} (g); Δ H = - 48.0 k c a l

H_{2} (g) + \frac{1}{2} O_{2} (g) ⟶ H_{2} O (l); Δ H = - 68.4 k c a l

K O H (s) + (a q) ⟶ K O H (a q); Δ H = - 14.0 k c a l

K O H_{(a q)} + H_{3} P O_{4 (a q)} \to K_{3} P O_{4 (a q)} + H_{2} O_{(l)}

When the equation for the reaction represented above is balanced and the coefficients are reduced to the lowest whole number terms, the coefficient for

H_{2} O

is:

Q. Identify the reactants in the following reaction.

$KOH(aq) + {HNO}_{3} (aq) \to H_{2} O(l) + {KNO}_{3} (aq)$

Q. The balanced chemical equation for potassium reacting with water is:

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