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# Answers to Questions Here are the answers to the questions: **1. The substance whose Lewis structure shows three covalent bonds:** * Nitrogen (N) can form three covalent bonds to achieve a complete octet (full valence shell). **2. How many electrons must be shown in the Lewis structure of the...

# Answers to Questions Here are the answers to the questions: **1. The substance whose Lewis structure shows three covalent bonds:** * Nitrogen (N) can form three covalent bonds to achieve a complete octet (full valence shell). **2. How many electrons must be shown in the Lewis structure of the hydroxide ion (OH⁻)?** * 10 (8 valence electrons from oxygen + 1 from hydrogen + 1 extra electron due to the negative charge). **3. Correct Lewis structure for hydrogen chloride (HCl):** * H-Cl: (The chlorine atom has 6 unshared electrons). **4. Formula for zinc fluoride:** * ZnF₂ (Zinc forms a +2 charge and fluoride is -1). **5. The chemical formula H₂O is an example of:** * molecular formula (It shows the exact number of atoms in the molecule). **6. In a Lewis structure, each nonmetal atom except hydrogen should be:** * (The text is incomplete/truncated. It likely describes how many valence electrons should be shown around each atom.)