Question

question 1
1 pts
how many electrons remain after step 3 in ccl₂o? subtract the used electrons.
12 v.e.
27 v.e.
21 v.e.
18 v.e.

Explanation:

Step1: Calculate total valence electrons

Carbon (C) has 4 valence electrons, each Chlorine (Cl) has 7 valence electrons, and Oxygen (O) has 6 valence electrons.
Total valence electrons: \(4 + 2\times7+6= 4 + 14+6=24\)

Step2: Calculate electrons used in step 3 (single bonds)

In step 3 (assuming single - bond formation), if we consider the skeletal structure (e.g., \(Cl - C - Cl - O\) or a reasonable skeletal structure for \(CCl_{2}O\)), the number of bonds formed in step 3 (single bonds) is 3. Each single bond uses 2 electrons. So electrons used in step 3: \(3\times2 = 6\)

Step3: Calculate remaining electrons

Remaining electrons \(=24 - 6=18\)

Answer:

18 v.e.