Question

Na + H2O = NaOH + H2 balance this equation

Answer 1

Answer:

Explanation:

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products.

In other words, the mass and the charge are balanced on both sides of the reaction.

Answer 2

Answer:

The balanced equation would be: $2Na + 2H_{2} O = 2NaOH + H_{2}$

Explanation:

The given equation is : $Na + H_{2} O = NaOH + H_{2}$

In a balanced chemical reaction, the number of atoms of all the elements are equal on both sides of the reaction. To balance the given reaction in question, count the number of atoms of each element on both sides and if they are not equal, make them equal by multiplication with a required number.

The number of Sodium atoms on the Reactant side = 1

The number of Hydrogen atoms on the Reactant side = 2

The number of Oxygen atoms on the Reactant side = 1

The number of Sodium atoms on the Product side = 1

The number of Hydrogen atoms on the Product side = 3

The number of Oxygen atoms on the Product side = 1

To balance the equation, Na, NaOH, and $H_{2}O$ should be multiplied by 2.

The resultant equation would be: $2Na + 2H_{2} O = 2NaOH + H_{2}$

The number of Sodium atoms on the Reactant side = 2

The number of Hydrogen atoms on the Reactant side = 4

The number of Oxygen atoms on the Reactant side = 2

The number of Sodium atoms on the Product side = 2

The number of Hydrogen atoms on the Product side = 4

The number of Oxygen atoms on the Product side = 2

So, the correct answer is '$2Na + 2H_{2} O = 2NaOH + H_{2}$'.

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