Question

urea ($ch_4n_2o$) is commonly used in fertilizers. urea and water ($h_2o$) are produced when ammonia ($nh_3$) reacts with carbon dioxide gas ($co_2$). this chemical reaction is represented by the model below.determine the number of each type of atom in the reactants and products.| | h | c | n || ---- | ---- | ---- | ---- || number of atoms in reactants | 6 | | || number of atoms in products | 6 | | |key: h $circ$, c $\bullet$, n $\bluesquare$, o $
edsquare$

Explanation:

Step1: Identify reactant atom counts

Reactants: $2\text{NH}_3 + \text{CO}_2$

• H: $2\times3 = 6$ (given)
• C: $1$ (from $\text{CO}_2$)
• N: $2\times1 = 2$ (from $2\text{NH}_3$)

Step2: Identify product atom counts

Products: $\text{CH}_4\text{N}_2\text{O} + \text{H}_2\text{O}$

• H: $4 + 2 = 6$ (given)
• C: $1$ (from $\text{CH}_4\text{N}_2\text{O}$)
• N: $2$ (from $\text{CH}_4\text{N}_2\text{O}$)

Answer:

	Number of atoms in reactants	Number of atoms in products
C	1	1
N	2	2