Podcast
Questions and Answers
Which element can form three covalent bonds to achieve a complete octet?
Which element can form three covalent bonds to achieve a complete octet?
How many total electrons are present in the Lewis structure of the hydroxide ion (OH⁻)?
How many total electrons are present in the Lewis structure of the hydroxide ion (OH⁻)?
What is the correct Lewis structure for hydrogen chloride (HCl)?
What is the correct Lewis structure for hydrogen chloride (HCl)?
What is the chemical formula for zinc fluoride?
What is the chemical formula for zinc fluoride?
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The formula H₂O is categorized as which type of chemical formula?
The formula H₂O is categorized as which type of chemical formula?
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Study Notes
Lewis Structure Questions and Answers
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Question 1: Identify the substance with three covalent bonds in its Lewis structure.
- Answer: Ammonia (NH). Nitrogen forms three covalent bonds to achieve a full octet.
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Question 2: Determine the number of electrons in the Lewis structure of the hydroxide ion (OH⁻).
- Answer: 10 electrons. This includes 8 valence electrons from oxygen, 1 from hydrogen, and 1 extra electron due to the negative charge.
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Question 3: Draw the correct Lewis structure for hydrogen chloride (HCl).
- Answer: H-Cl: Chlorine has 6 unshared electrons.
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Question 4: What is the formula for zinc fluoride?
- Answer: ZnF₂. Zinc has a +2 charge, and fluoride has a -1 charge.
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Question 5: What type of formula is H₂O?
- Answer: Molecular formula. It indicates the exact number of atoms in the molecule.
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Question 6: How are nonmetal atoms represented in Lewis structures?
- Answer: Each nonmetal atom, except hydrogen, should be surrounded by eight valence electrons.
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Description
Test your knowledge on Lewis structures with this quiz designed to challenge your understanding of covalent bonds, electron counts, and molecular formulas. Perfect for students studying chemistry, it covers various substances and their representations in Lewis form.
