Question

part 3: subatomic structure of compounds
vinegar has the chemical formula of c₂h₄o₂
a. how many of each element are in this formula and what are they called? (3pts: 0.5pt for each box in the table)

	element name	how many are in the formula?
element 1
element 2
element 3

b. draw the dot structures of all 3 elements in c₂h₄o₂ (3pts: 1pt for each correct dot structure)

element 1	element 2	element 3

c. draw the compound dot structure of c₂h₄o₂ (3pts: 1pt for the correct number of elements, 1pt for the correct placement of elements, 1pt for the correct placement of bonds) there are multiple possible structures, any will be counted correct

Explanation:

Step1: Identify elements and counts

From $\ce{C2H4O2}$, extract element symbols, names, and subscripts.

Step2: Draw atomic dot structures

Use valence electrons for each element: C (4), H (1), O (6).

Step3: Draw compound dot structure

Assemble atoms into acetic acid, the main component of vinegar, with correct bonds.

Answer:

Part a.

	Element name	How many are in the formula?
Element 2	Hydrogen	4
Element 3	Oxygen	2

Part b.

Element 1 (Carbon):

    • C •
    •   •

Element 2 (Hydrogen):

    • H

Element 3 (Oxygen):

    ••
    • O •
    ••

Part c. (Acetic acid dot structure, one valid form):

      ••         ••
H • C •• C •• O •• H
      ••
H     •

Or structured more clearly:

    H       ••
    |       ||
H - C - C - O - H
    |
    H

with lone pairs: Oxygen has two sets of lone electrons (••) on the unbonded sides.