Question

try again your answer is incorrect. . row 1: co₂: your answer is incorrect. . row 2: h₂o: your answer is incorrect. decide whether these proposed lewis structures are reasonable proposed lewis structure is the proposed lewis structure reasonable? :o - c - o: yes. no, it has the wrong number of valence electrons. the correct number is: no, it has the right number of valence electrons but doesnt satisfy the octet rule. the symbols of the problem atoms are: h - h - o yes. no, it has the wrong number of valence electrons. the correct number is: 8 no, it has the right number of valence electrons but doesnt satisfy the octet rule. the symbols of the problem atoms are: yes. no, it has the wrong number of valence electrons.

Explanation:

Step1: Calculate valence - electrons for CO₂

Carbon has 4 valence electrons and oxygen has 6 valence electrons. For CO₂, the total number of valence electrons is \(4 + 2\times6=16\). The given Lewis - structure of CO₂ has the wrong connectivity. The correct Lewis - structure of CO₂ is \(O = C = O\). The given structure has the wrong number of valence electrons. The correct number of valence electrons is 16.

Step2: Calculate valence - electrons for H₂O

Hydrogen has 1 valence electron and oxygen has 6 valence electrons. For H₂O, the total number of valence electrons is \(2\times1+6 = 8\). The given structure \(H - H - O\) is incorrect as hydrogen atoms are bonded to each other instead of being bonded to the oxygen atom. The correct Lewis - structure has oxygen as the central atom with two hydrogen atoms bonded to it and two lone pairs on oxygen.

Answer:

For CO₂: No, it has the wrong number of valence electrons. The correct number is: 16
For H₂O: No, it has the wrong number of valence electrons. The correct number is: 8