Question

1. two students are studying a chemical equation that was used in class. it involves compounds that include oxygen.

part a
which compound contains the greater number of oxygen atoms?
co₂
na₂co₃
h₂o
ch₄

Explanation:

Step1: Analyze CO₂

In CO₂, the sub - script of O is 2, so there are 2 oxygen atoms per molecule.

Step2: Analyze Na₂CO₃

In Na₂CO₃, the sub - script of O is 3, so there are 3 oxygen atoms per molecule.

Step3: Analyze H₂O

In H₂O, the sub - script of O is 1, so there is 1 oxygen atom per molecule.

Step4: Analyze CH₄

In CH₄, there is no oxygen atom.

Answer:

Na₂CO₃