Which one of the following chemical equations is balanced? a. 2na + s → 2nas b. koh + h2so4 → khso4 + h2o c. nh3 + h2o → 2nh4oh d. 2nacl + h2so4 → hcl + naso4 penn foster

The correct option is Option B.

Explanation:

A balanced chemical equation is a chemical equation in which number of atoms on both the sides of the reaction remains same. All the balanced chemical equation follow Law of conservation of mass.

Law of conservation of mass states that the total mass in a chemical reaction remains same. The total mass on the reactant side will be same as the total mass on the product side.

From the given options:

Option A:

Here, total mass on the reactant side is not equal to the total mass on the product side. Hence, this equation is not a balanced chemical equation.

Option B:

Total mass on the reactant side:

Total mass on the product side:

As, total mass on the reactant side is equal to the total mass on the product side. Hence, this equation is a balanced chemical equation.

Option C:

Here, total mass on the reactant side is not equal to the total mass on the product side. Hence, this equation is not a balanced chemical equation.

Option D:

Here, total mass on the reactant side is not equal to the total mass on the product side. Hence, this equation is not a balanced chemical equation.

Hence, the correct answer is Option B.

i look it up online and i'll tell you

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

hope it

and ur welcm

: )