Question

1. name the elements found in each of the following compounds.

a. ammonia (nh₃)
b. potassium oxide (k₂o)
c. sucrose (c₁₂h₂₂o₁₁)
d. calcium sulfide (cas)

Explanation:

Part a: Ammonia ($\ce{NH_3}$)

Step 1: Identify elements from formula

The chemical formula of ammonia is $\ce{NH_3}$. The symbols $\ce{N}$ and $\ce{H}$ represent nitrogen and hydrogen respectively.

Step 1: Identify elements from formula

The chemical formula of potassium oxide is $\ce{K_2O}$. The symbols $\ce{K}$ and $\ce{O}$ represent potassium and oxygen respectively.

Step 1: Identify elements from formula

The chemical formula of sucrose is $\ce{C_{12}H_{22}O_{11}}$. The symbols $\ce{C}$, $\ce{H}$ and $\ce{O}$ represent carbon, hydrogen and oxygen respectively.

Answer:

Ammonia ($\ce{NH_3}$) contains nitrogen (N) and hydrogen (H).

Part b: Potassium oxide ($\ce{K_2O}$)