Question

Introduction to Biochemistry: Mastery

5
Select all the correct answers.
Which two molecules are compounds?
0
O
NaHCO3
03
C₂
C₂H18

Answer 1

A compound is a substance formed from two or more different elements chemically united in a fixed proportion. Based on this definition, the two molecules that are compounds are:

1. NaHCO3 (sodium bicarbonate) - This molecule is composed of three different elements: sodium (Na), hydrogen (H), carbon (C), and oxygen (O).

2. C₂H18 (ethane) - This molecule is composed of two different elements: carbon (C) and hydrogen (H).

The other two options, O3 (ozone) and C₂ (diatomic carbon), are not compounds because they are each composed of a single element.

Step-by-step explanation: