put in word equation chlorine + potassium nitride -> nitrogen + potassium chloride

Explanation:

From the word equation, you can write the molecular equation, and the balanced molecular equation, which is a basic skill that chemistry studends must develop.

1. Write the chemical formula of each reactant and product

a) Chlorine: Cl₂ (g) . It is a diatomic gas at room temperature and standard pressue.

b) Potassium nitride is a salt formed by N₃⁻ ion and K⁺ ion. It is a solid at room temperature.

c) Nitrogen: N₂(g). It is a diatomic gas at room temperature and standard pressure

d) Potassium chloride: it is the salt with the ions K⁺ and Cl⁻. It is also a solid at room temperature.

2. Write the molecular chemical equation:

3. Balance the molecular equation:

Add the needed coefficients to balance both sides of the equation:

Count the number of each kind of atom on each side:

Then, the equation is balanced.

a electronegativity decreases beacuse the size of nucleus is bigger.