Question

ammonia (nh₃) is commonly used as a fertilizer for plants. it is made when nitrogen gas (n₂) and hydrogen gas (h₂) react under specific conditions. this chemical reaction is represented by the model below. determine the number of each type of atom in the reactants and products.

Explanation:

Step1: Count H atoms in reactants

There are 3 \(H_2\) molecules. Each \(H_2\) has 2 H atoms. So \(3\times2 = 6\) H atoms.

Step2: Count H atoms in products

There are 2 \(NH_3\) molecules. Each \(NH_3\) has 3 H atoms. So \(2\times3=6\) H atoms.

Step3: Count N atoms in reactants

There is 1 \(N_2\) molecule. Each \(N_2\) has 2 N atoms. So 2 N atoms.

Step4: Count N atoms in products

There are 2 \(NH_3\) molecules. Each \(NH_3\) has 1 N atom. So \(2\times1 = 2\) N atoms.

Answer:

	Number of atoms in reactants	Number of atoms in products
N	2	2