Question

1.05 - test review - counting atoms how many atoms in all, are in the molecule below: h₃c₅o

Explanation:

Step1: Identify each atom's count

For the molecule $\ce{H_{3}C_{5}O}$, we have:

• Hydrogen ($\ce{H}$): The subscript is 3, so there are 3 $\ce{H}$ atoms.
• Carbon ($\ce{C}$): The subscript is 5, so there are 5 $\ce{C}$ atoms.
• Oxygen ($\ce{O}$): The subscript is 1 (implied if no subscript), so there is 1 $\ce{O}$ atom.

Step2: Sum the number of atoms

To find the total number of atoms, we add the number of each type of atom: $3 + 5 + 1$.
Calculating this sum: $3 + 5 = 8$, and $8 + 1 = 9$.

Answer:

9