Chemistry Chemistry Practice Problems Solutions Library

Octet Rule Solutions Library

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53 solutions

Octet Rule

Q. Each of the following structures is invalid. Identify the error in each case.octet-rule violationwrong electron total

Solved • Mar 25, 2020

Octet Rule

Q. How many of the following elements can form compounds with an expanded octet?S     Kr     Xe     Ba. 0b. 1c. 2d. 3e. 4

Solved • Oct 11, 2019

Octet Rule

Q. The central atom in __________ violates the octet rule.A) NH3B) SeF2C) BF3D) AsF3E) CF4

Solved • Oct 1, 2019

Octet Rule

Q. Why does the Lewis structure of XeF4 not follow the octet rule?

Solved • Aug 7, 2019

Octet Rule

Q. Why don't we draw double bonds between the Be atom and the Cl atoms in BeCl  2?a. That would give positive formal charges to the chlorine atoms and...

Solved • Aug 2, 2019

Octet Rule

Q. A valid Lewis structure of _____ cannot be drawn without violating the octet rule.a. NF3b. BeH2c. SO2d. CF4e. SO32-

Solved • Aug 2, 2019

Octet Rule

Q. A valid Lewis structure of _____ cannot be drawn without violating the octet rule.a. NI3b. SO2c. ICl5d. SiF4e. CO2

Solved • Aug 2, 2019

Octet Rule

Q. Write a Lewis structure and identify the octet-rule exception for each of the following: (select "expanded octet" or "electron deficient octet")A. ...

Solved • Jul 10, 2019

Octet Rule

Q. The anion (v) is called "BARF" by chemists, as its common abbreviation sounds similar to this word.Which, if any, of these anions has an expanded o...

Solved • Dec 3, 2018

Octet Rule

Q. SF6, ClF5, and XeF4 are three compounds whose central atoms do not follow the octet rule. Draw Lewis structures for these compounds.

Solved • Nov 27, 2018

Octet Rule

Q. Although I3- is known, F3- is not.One of your classmates says F3- does not exist because it would violate the octet rule. Is this classmate possibl...

Solved • Nov 12, 2018

Octet Rule

Q. Which of these compounds is an exception to the octet rule: carbon dioxide, water, ammonia, phosphorus trifluoride, or arsenic pentafluoride?

Solved • Nov 12, 2018

Octet Rule

Q. Which of these compounds or ions is an exception to the octet rule rule: borohydride (BH4–), borazine (B3N3H6, which is analogous to benzene with a...

Solved • Nov 12, 2018

Octet Rule

Q. Draw the dominant Lewis structures for these chlorine-oxygen molecules/ions.Which of these do not obey the octet rule?

Solved • Nov 12, 2018

Octet Rule

Q. For elements in the third row of the periodic table and beyond, the octet rule is often not obeyed. A friend of yours says this is because these he...

Solved • Nov 12, 2018

Octet Rule

Q. Suppose a particular AB3 molecule has the resonance structureDoes this structure follow the octet rule?

Solved • Nov 12, 2018

Octet Rule

Q. Consider the following XF4 ions: PF4–, BrF4–, ClF4+, and AlF4–. Which of the ions have more than an octet of electrons around the central atom?

Solved • Nov 12, 2018

Octet Rule

Q. Write a Lewis structure for each of the following molecules that are exceptions to the octet rule.BBr3

Solved • Nov 12, 2018

Octet Rule

Q. Which elements can have expanded octets?

Solved • Nov 12, 2018

Octet Rule

Q. Which elements should never have expanded octets?

Solved • Nov 12, 2018

Octet Rule

Q. The standard state of phosphorus at 25oC is P4. This molecule has four equivalent P atoms, no double or triple bonds, and no expanded octets. Draw...

Solved • Nov 12, 2018

Octet Rule

Q. Free radicals are important in many environmentally significant reactions (see the Chemistry in the Environment box on free radicals in Chapter 9 i...

Solved • Nov 12, 2018

Octet Rule

Q. Write Lewis structures for each of the following species. Use expanded octets as necessary.I3–

Solved • Nov 12, 2018

Octet Rule

Q. Which molecule would you expect to be a free radical?(a) CO(b) CO2(c) N2O(d) NO2

Solved • Nov 12, 2018

Octet Rule

Q. These species do not obey the octet rule. Draw a Lewis structure for each, and state the type of octet-rule exception:(c) SbF4−

Solved • Oct 28, 2018

Octet Rule

Q. These species do not obey the octet rule. Draw a Lewis structure for each, and state the type of octet-rule exception:(a) PF6−

Solved • Oct 28, 2018

Octet Rule

Q. These species do not obey the octet rule. Draw a Lewis structure for each, and state the type of octet-rule exception: (b) AsF4 −

Solved • Oct 28, 2018

Octet Rule

Q. Which of the following contains an atom that does not obey the octet rule?a. KBrb. CO2c. ClF3d. ICl

Solved • Mar 23, 2018

Octet Rule

Q. How many lone pairs are on the central atom in BrF3? Express your answer numerically as an integer.

Solved • Mar 22, 2018

Octet Rule

Q. What is the lewis structure for SeOBr 2?

Solved • Mar 21, 2018

Octet Rule

Q. Which molecule could have an expanded octet?a. H2CO3b. H3PO4c. HNO2

Solved • Mar 21, 2018

Octet Rule

Q. Which of the following atoms can expand its valence shell? (Select all that apply.)S, Al, F, H, Cl, Se

Solved • Mar 13, 2018

Octet Rule

Q. If the boron nitride molecule, BN , were to form, what would its structure look like?

Solved • Mar 8, 2018

Octet Rule

Q. Draw the Lewis structure of the hypochlorite ion, ClO -. Include lone pairs.

Solved • Mar 7, 2018

Octet Rule

Q. Draw the Lewis structure for HCN molecule. Include lone pairs.

Solved • Mar 7, 2018

Octet Rule

Q. Complete these structures by adding dots as needed.

Solved • Mar 2, 2018

Octet Rule

Q. Which of these satisfy the octet rule and which do not? Drag the appropriate items to their respective bins.

Solved • Feb 15, 2018

Octet Rule

Q. Write a Lewis structure for each of the following molecules that are exceptions to the octet rule.BBr3       NO     ClO2    

Solved • Dec 18, 2017

Octet Rule

Q. Draw a Lewis structure for SiCl4 and answer the following questions based on your drawing.1. For the central silicon atom:The number of lone pairs=...

Solved • Dec 15, 2017

Octet Rule

Q. Draw the Lewis structure of ClO 2 with minimized formal charge. Which atom does not have 8 valence electrons.

Solved • Dec 14, 2017

Octet Rule

Q. Consider the following four molecules: CO2-3, PF5, CS2, BBr3.Which of these satisfy the octet rule and which do not? 

Solved • Sep 22, 2017

Octet Rule

Q. Consider the following moleculesI. BCl3        II. CHBr3 (C is the central atom)      III. Cl2        IV. XeBr2          V. COThese molecules do no...

Solved • Jul 10, 2017

Octet Rule

Q. Which of the following species is a radical?CH2OHCNHClOClONO2ClO

Solved • Jul 10, 2017

Octet Rule

Q. Consider the following set of molecules:I). BF3      II). CHBr3 (central atom is C)     III). Br2      IV). XeCl2       V). CO      VI). SF4Select ...

Solved • Jun 19, 2017

Octet Rule

Q. Which of the following molecules does NOT contain an exception to the octet rule?A. SF4B. NOC. BH3D. XeF2E. N2O

Solved • May 29, 2017

Octet Rule

Q. Which of the following statements is/are true?i. B in BF3 violates the octet ruleii. Xe in XeF2 violates the octet ruleiii. S in SF2 violates the o...

Solved • Aug 24, 2016

Octet Rule

Q. Which of the following atoms can expand its valence shell when bonding?a. Pb. Cc. Ald. Ne. O

Solved • Aug 24, 2016

Octet Rule

Q. Which of the species NO, BrO, CH3+, BF4– are radicals?1. NO and BrO only2. BrO and CH3+ only3. BrO and BF4+ only4. NO, CH3+ and BF4– only5. NO and ...

Solved • Aug 16, 2016

Octet Rule

Q. Molecules of which compounds violate the octet rule?a) 1 and 2b) 1 and 3c) 2 and 3d) 2 and 4

Solved • May 6, 2016

Octet Rule

Q. Which is an isomer of the structure that is given in the box below?

Solved • Apr 26, 2016

Octet Rule

Q. Which of the following elements can form compounds with an expanded octet (doesn't obey octet)?a) Seb) Cc) Lid) Fe) B

Solved • Feb 25, 2016

Octet Rule

Q. In which one of the following compounds can a valid Lewis structure be drawn but it is permissible for the central atom to violate the octet rule?a...

Solved • Feb 18, 2016

Octet Rule

Q. Which compounds violate the octet rule? (Be sure to draw all the structures before you decide!)NO2     CH2Cl2     XeF4     NCl3a. NO2 and XeF4b. NO...

Solved • Feb 17, 2016