Question

How many atoms of hydrogen are represented in 2CH3CH2O?

Answer 1

5 you can tell because it comes after the letter.

Answer 2

The correct answer is 10 atoms of hydrogen

Step-by-step explanation:

Atomicity of an element is the total number of that element present in the molecule(s) of a compound.

Here, we have 2 molecules of CH₃CH₂O

Thus, each molecule has 5 atoms of hydrogen (3+2), however we have 2 molecules of the compound, hence hydrogen atoms in the two molecules will be 5 × 2 = 10