Chemistry Chemistry Practice Problems Solutions Library

Lewis Dot Structure Solutions Library

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359 solutions

Lewis Dot Structure

Q. Add lone pairs to these Lewis structures of polyhalide ions. 

Solved • Mar 25, 2020

Lewis Dot Structure

Q. Draw pyruvate as it would occur at the pH of most body fluids. 

Solved • Mar 20, 2020

Lewis Dot Structure

Q. Draw the lewis structure for a thiol [SH-] ion. 

Solved • Mar 20, 2020

Lewis Dot Structure

Q. Draw the Lewis structure for ammonium, NH4+.

Solved • Mar 20, 2020

Lewis Dot Structure

Q. Decide whether the Lewis structure proposed for each molecule is reasonable or not.

Solved • Mar 12, 2020

Lewis Dot Structure

Q. Decide whether these proposed Lewis structures are reasonable.Proposed Lewis structure Is the proposed Lewis structure reasonable? a) Yes b) No, It...

Solved • Mar 12, 2020

Lewis Dot Structure

Q. How many lone pairs surround the central atom in the Lewis structure of ClF3?A. 0 B. 1 C. 2 D. 3 E. 5

Solved • Nov 28, 2019

Lewis Dot Structure

Q. What is the number of valence electrons in an alkali metal?A. 1B. 2C. 6D. 7E. 8

Solved • Nov 28, 2019

Lewis Dot Structure

Q. In the Lewis structure for SF6 , the central sulfur atom shares __________ electrons.A. 4B. 8C. 10D. 12E. None of the above, because SF6  is an ion...

Solved • Nov 22, 2019

Lewis Dot Structure

Q. Which of these has the fewest lone pairs in its most important Lewis dot structure?a. H2O2b. carbonate ionc. nitrite iond. nitrate ione. boron tric...

Solved • Nov 21, 2019

Lewis Dot Structure

Q. Give the number of valence electrons for SO 42-.a. 32b. 28c. 36d. 30e. 34

Solved • Oct 11, 2019

Lewis Dot Structure

Q. How many lone pairs are on the Cl atom in ClF 2-?A) 0B) 1C) 2D) 3

Solved • Oct 11, 2019

Lewis Dot Structure

Q. Choose the best Lewis structure for ICl5.

Solved • Oct 11, 2019

Lewis Dot Structure

Q. Which of the molecules in the choices given is not isoelectronic with the others? The choices are: SO3, NF3, NO3–, CO32–?a. SO3b. NF3c. NO3–d. CO32...

Solved • Oct 9, 2019

Lewis Dot Structure

Q. The central atom in SOCl2 is a sulfur atom. Fill in the blanks in the statement below:The sulfur-oxygen bond is a ________ and there are _________ ...

Solved • Oct 9, 2019

Lewis Dot Structure

Q. Which of the following are possible Lewis structures for C 2H6O?a. (1) and (2)b. (1) and (3)c. (2) and (3)d. (1) or (2) or (3) - only one structure...

Solved • Oct 9, 2019

Lewis Dot Structure

Q. Which of the following is a correct Lewis structure for nitrous acid, HNO 2?

Solved • Oct 9, 2019

Lewis Dot Structure

Q. In the nitrite ion, how many total valence electrons are used for all three atoms?  HINT: nitrite ion, not nitrate ion.a. 16 valence electrons are ...

Solved • Oct 9, 2019

Lewis Dot Structure

Q. Which has the most unpaired electrons?A. S B. S2- C. S+ D. S- E. None have unpaired electrons

Solved • Oct 3, 2019

Lewis Dot Structure

Q. The Lewis structure of the CO32- ion is __________.

Solved • Oct 1, 2019

Lewis Dot Structure

Q. Which of the following represent the Lewis structure for Br -?

Solved • Sep 30, 2019

Lewis Dot Structure

Q. Select the element whose Lewis symbol is correct:

Solved • Sep 26, 2019

Lewis Dot Structure

Q. Select the correct Lewis structure for nitrogen trifluoride.

Solved • Sep 26, 2019

Lewis Dot Structure

Q. Select the best Lewis structure for ClCN.

Solved • Sep 26, 2019

Lewis Dot Structure

Q. In neutral molecules, how many bonds are commonly formed by nitrogen?A. 5      B. 4      C. 3      D. 2      E. 1

Solved • Sep 18, 2019

Lewis Dot Structure

Q. The best Lewis structure for sulfuric acid has zero formal charges, sulfur as the central atom, and no bonds between S and H. How many total single...

Solved • Sep 18, 2019

Lewis Dot Structure

Q. How many lone pairs of electrons are on the iodine atom in the Lewis structure of IF3?A. 0      B. 1      C. 2      D. 3      E. 4

Solved • Sep 18, 2019

Lewis Dot Structure

Q. What is the formula of the ion formed when phosphorous achieves a noble gas electron configuration?

Solved • Sep 9, 2019

Lewis Dot Structure

Q. What is the formula of the ion formed when potassium achieves noble gas electron configuration?

Solved • Sep 9, 2019

Lewis Dot Structure

Q. How does oxygen obey the octet rule when reacting to form compounds?

Solved • Sep 9, 2019

Lewis Dot Structure

Q. How many electrons does nitrogen gain in order to achieve a noble gas electron configuration?

Solved • Aug 29, 2019

Lewis Dot Structure

Q. How many electrons does barium have to give up to achieve a noble gas configuration?

Solved • Aug 29, 2019

Lewis Dot Structure

Q. How does calcium obey the octet rule when reacting to form compounds?

Solved • Aug 29, 2019

Lewis Dot Structure

Q. Sulfuric acid is the industrial chemical produced in greatest quantity worldwide. About 90 billion pounds are produced each year in the United Stat...

Solved • Aug 26, 2019

Lewis Dot Structure

Q. How many valence electrons do alkaline earth metals have?

Solved • Aug 25, 2019

Lewis Dot Structure

Q. How many valence electrons does neon have?

Solved • Aug 25, 2019

Lewis Dot Structure

Q. Write electron dot structure for the following element:Li

Solved • Aug 25, 2019

Lewis Dot Structure

Q. Write electron dot structure for the following element:Al

Solved • Aug 25, 2019

Lewis Dot Structure

Q. Write electron dot structure for the following element:S

Solved • Aug 25, 2019

Lewis Dot Structure

Q. Write electron dot structure for the following element:Cl

Solved • Aug 25, 2019

Lewis Dot Structure

Q. To which group in the periodic table does each of the following element belong? How many valence electrons do atoms of the element have?carbon

Solved • Aug 25, 2019

Lewis Dot Structure

Q. To which group in the periodic table does each of the following element belong? How many valence electrons do atoms of the element have?bromine

Solved • Aug 25, 2019

Lewis Dot Structure

Q. To which group in the periodic table does each of the following element belong? How many valence electrons do atoms of the element have?barium

Solved • Aug 25, 2019

Lewis Dot Structure

Q. To which group in the periodic table does each of the following element belong? How many valence electrons do atoms of the element have?phosphorus

Solved • Aug 25, 2019

Lewis Dot Structure

Q. How many valence electrons does a carbon atom have?How many covalent bonds can each carbon atom form?

Solved • Aug 25, 2019

Lewis Dot Structure

Q. How many valence electrons does potassium have?

Solved • Aug 25, 2019

Lewis Dot Structure

Q. What is the electron dot diagram for carbon?

Solved • Aug 8, 2019

Lewis Dot Structure

Q. What is the Lewis electron-dot structure for a molecule of hydrogen chloride?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. How do you write the electron dot diagram for the hydroxide ion  OH−?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. What is the Lewis dot diagram for carbon?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. What are the number of bonding pairs and lone pairs of electrons in  H2O?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. What is the Lewis electron-dot diagram for a fluoride ion?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. How do you write the electron dot diagram of a hydrogen chloride molecule?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. Why is boron trifluoride written in two ways in the Lewis dot diagram structure?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. How do you write/draw a Lewis structure for N?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. What is the Lewis structure of CO2?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. What is the electron dot diagram for an oxygen atom?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. How can I write the Lewis dot structure for C 2H6?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. Which Lewis electron-dot diagram is correct for a  S2− ion?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. How would you represent potassium and bromine using an electron dot diagram? How about KBr?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. How can I draw the Lewis structure for ClO 2-?

Solved • Aug 7, 2019

Lewis Dot Structure

Q. Construct electron-dot diagrams for (a) the ammonium ion; (b) carbon tetrachloride; (c) the hexafluorosilicate ion, SiF62-; (d) the pentafluorosulf...

Solved • Aug 6, 2019

Lewis Dot Structure

Q. In an electron-dot structure of an element, the dots are used to representa. only the electrons that will participate in bond formation b. all of t...

Solved • Aug 5, 2019

Lewis Dot Structure

Q. Identify the number of bonding pairs and lone pairs of electrons in waterA) 1 bonding pair and 2 lone pairsB) 2 bonding pairs and 1 lone pairC) 1 b...

Solved • Aug 5, 2019

Lewis Dot Structure

Q. Consider the Lewis structure for the nitric acid molecule, HNO 3, and select the false statement.a. More than one resonance structure is required.b...

Solved • Jul 9, 2019

Lewis Dot Structure

Q. Hydrazine (NH2 NH2 ), hydrogen peroxide (HOOH), and water (H2 O) all have exceptionally high surface tensions in comparison with other substances o...

Solved • Nov 27, 2018

Lewis Dot Structure

Q. Two structures can be drawn for cyanuric acid:a. Are these two structures the same molecule? Explain.

Solved • Nov 27, 2018

Lewis Dot Structure

Q. Two molecules used in the polymer industry are azodicarbonamide and methyl cyanoacrylate. Their structures areAzodicarbonamide is used in forming p...

Solved • Nov 27, 2018

Lewis Dot Structure

Q. Borazine (B3N3H6) has often been called “inorganic” benzene. Write Lewis structures for borazine. Borazine contains a sixmembered ring of alternati...

Solved • Nov 27, 2018

Lewis Dot Structure

Q. Lewis structure can be used to understand why some molecule react in certain ways. Write the Lewis structure for the reactant and product in the re...

Solved • Nov 27, 2018

Lewis Dot Structure

Q. Write Lewis structure that obey the octet rule for the following molecules and ions. (In this case the first atom listed is the central atom.)a. PO...

Solved • Nov 27, 2018

Lewis Dot Structure

Q. Write Lewis structure that obey the octet rule for the following molecules and ions. (In this case the first atom listed is the central atom.)a. PO...

Solved • Nov 27, 2018

Lewis Dot Structure

Q. Write Lewis structure and predict whether the following is polar or nonpolar.a. HOCN (exists as HOOCN)

Solved • Nov 27, 2018

Lewis Dot Structure

Q. In the formate ion, HCO2- , the carbon atom is the central atom with the other three atoms attached to it.Draw a Lewis structure for the formate ion.

Solved • Nov 12, 2018

Lewis Dot Structure

Q. In the formate ion, HCO2–, the carbon atom is the central atom with the other three atoms attached to it. How many electrons are in the pi system o...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Ammonia reacts with boron trifluoride to form a stable compound.Draw the Lewis structure of the ammonia-boron trifluoride reaction product.

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Although I3- is known, F3- is not.Draw the Lewis structure for I3- (It is linear, not a triangle).

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Ammonium chloride, NH4Cl, is a very soluble salt in water.Is there an N-Cl bond in solid ammonium chloride?

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Atoms follow the octet rule by gaining, losing, or sharing electrons until they are surrounded by eight valence electrons. Use the elements shown ...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Draw the Lewis structure for hydrogen peroxide, H2O2.

Solved • Nov 12, 2018

Lewis Dot Structure

Q. The ionic compound CaO crystallizes with the same structure as sodium chloride. In this structure, how many O2− are in contact with each Ca...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Draw the Lewis structure for NO+.

Solved • Nov 12, 2018

Lewis Dot Structure

Q. How many electrons are in the O3 system of the ozone molecule,  m O_3?

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Draw the Lewis structure(s) for the molecule with the chemical formula C2H3N, where the N is connected to only one other atom. How many double bond...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. How many nonbonding electron pairs are there in the Lewis structure of the peroxide ion, O22-?

Solved • Nov 12, 2018

Lewis Dot Structure

Q. The molecule shown below is called furan. It is represented in typical shorthand way for organic molecules, with hydrogen atoms not shown. ...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. The molecule shown below is called furan. It is represented in typical shorthand way for organic molecules, with hydrogen atoms not shown.How many ...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. The molecule shown below is called furan. It is represented in a typical shorthand way for organic molecules, with hydrogen atoms not shown.How man...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. The Ti2+ ion is isoelectronic with the Ca atom.Calculate the number of unpaired electrons for Ti2+.

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Draw the dominant Lewis structures for these chlorine-oxygen molecules/ions.ClO2-

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Draw the dominant Lewis structures for these chlorine-oxygen molecules/ions.ClO3-

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Using Lewis symbols and Lewis structures, diagram the formation of SiCl4 from Si and Cl atoms, showing valence-shell electrons.How many valence ele...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Using Lewis symbols and Lewis structures, diagram the formation of SiCl4 from Si and Cl atoms, showing valence-shell electrons.How many valence ele...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Using Lewis symbols and Lewis structures, diagram the formation of SiCl4 from Si and Cl atoms, showing valence-shell electrons.How many valence ele...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Using Lewis symbols and Lewis structures, diagram the formation of SiCl4 from Si and Cl atoms, showing valence-shell electrons.How many bonding pai...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Use Lewis symbols and Lewis structures to diagram the formation of PF3 from P and F atoms, showing valence-shell electrons.How many valence electro...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Use Lewis symbols and Lewis structures to diagram the formation of PF3 from P and F atoms, showing valence-shell electrons.How many valence electro...

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Draw the Lewis structure for ethane (C2H6).

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Draw the Lewis structure for acetylene (C2H2).

Solved • Nov 12, 2018

Lewis Dot Structure

Q. Draw the Lewis structure for ethylene (C2H4).

Solved • Nov 12, 2018