Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. :F - P ·F The correct number is: PF 4 .. :F: :F: No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: Yes, it's a reasonable structure. : Cl : No, the total number of valence electrons is wrong. | - Cl : The correct number is: U : Cl Al No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. OCl2 : Cl ·Cl : The correct number is: U - No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: :0 :

Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. :F - P ·F The correct number is: PF 4 .. :F: :F: No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: Yes, it's a reasonable structure. : Cl : No, the total number of valence electrons is wrong. | - Cl : The correct number is: U : Cl Al No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: Yes, it's a reasonable structure. No, the total number of valence electrons is wrong. OCl2 : Cl ·Cl : The correct number is: U - No, some atoms have the wrong number of electrons around them. The symbols of the problem atoms are: :0 :

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter7: Chemical Bonding And Molecular Structure

Section: Chapter Questions

Problem 7.30PAE: 7.30 The bond in HF is said to be polar, with the hydrogen carrying a partial positive charge. For...

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7.30 The bond in HF is said to be polar, with the hydrogen carrying a partial positive charge. For this to be true, the hydrogen atom must have less than one electron around it. Yet the Lewis dot structure of HF attributes two electrons to hydrogen. Draw a picture of the electron density distribution for HF and use it to describe how the hydrogen atom can carry a partial positive charge. How can these two models of the HF bond (the electron density and the Lewis structure) seem so different and yet describe the same thing?
In ionic bonding, the electrons are shared between the atoms. the process of fanning an ionic bond is highly endothermic overall. the bonding that occurs is usually between two nonmetal atoms. a noble gas configuration is fanned far each element or ion. At least two of the above statements are correct.
7.63 What physical concept forms the premise of VSEPR theory?
ow does a bond between Naand Cldiffer from a bond between Cand O? What about a bond between Nand N?
Complete a Lewis structure for the compound shown below, then answer the following questions. What are the predicted bond angles about the carbon and nitrogen atoms? How many lone pairs of electrons are present in the Lewis structure? How many double bonds are present?
What information can you use to predict whether a bond between two atoms is covalent or ionic?
Acrolein is the starting material for certain plastics. (a) Which bonds in the molecule are polar and which are nonpolar? (b) Which is the most polar bond in the molecule? Which atom is the partial negative end of this bond?
Acrylonitrile is the building block of the synthetic fiber Orlon. Acrylonitrile Which carbon-carbon bond is shorter? Which carbon-carbon bond is stronger? Which bond is the most polar? What is the partial negative end of that bond?
What is meant by a chemical bond? Why do atoms form bonds with each other? Why do some elements exist as molecules in nature instead of as free atoms?
a. How many sticks did you need to make the skeleton structure?____________ b. How many sticks are left over? ____________ If your model is to obey the octet rule, each ball must have four sticks in it except for hydrogen atom balls, which need and can only have one. Each atom in an octet rule species is surrounded by four pairs of electrons. c. How many holes remain to be filled? ____________ Fill them with the remaining sticks, which represent nonbonding electron pairs. Draw the complete Lewis structure for NH2Cl using lines for bonds and pairs of dots for nonbonding electrons.
7.53 How do sigma and pi bonds differ? How are they similar?
Successive substitution of F atoms for H atoms in the molecule CH4 produces the molecules CH3F, CH2F2, CHF3, and CF4. a. Draw Lewis structures for each of the five molecules. b. Using VSEPR theory, predict the geometry of each of the five molecules. c. Specify the polarity (polar or nonpolar) for each of the five molecules.