CHMI-2426EL Study Guide - Quiz Guide: Newman Projection, Acid Dissociation Constant, Cyclohexane

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goldspider110

17 Jan 2020

School

Laurentian

Department

Chemistry & Biochemistry / Chimie et biochimie

Course

CHMI-2426EL

Professor

Chamha

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Document Summary

Covalent: sharing electrons in space: sharing electrons between 2 atoms, overlapping of atomic orbitals. The mathematical function that describes the high probability of finding an electron around the nucleus. Forms only the single bond ( covalent bond) Covalent bond can be formed by sideways overlap between 2py or. Covalent bond can also be formed by linear (horizontal) overlap of. S-s and p-p overlaps lead to covalent bonds. Formed by s-s, s-px, and px-px (linear) Formed by py-py and pz-pz (sideways) Bond is much stronger than the bond ( is more reactive) Carbon z=6; need to determine shape of carbon atom within a molecule. S and p orbitals from same atom combine combine to form new hybrid atomic orbitals with high electron density. P orbital will form a bond. P orbitals will form 2 bonds. Sharing electrons unequally polar (dipole moment = ) Electronegativities can be used to predict whether a bond will be polar.

Related Questions

1. True or False. a. A positively charged ion is called an anion. b. If an atom gives up an electron, it creates negatively charged ion. c. Valence electrons are the electrons that are available for bonding and located in the shells closest to the nucleus. d. An ionic bond is the result of electron sharing. e. When atoms gain, lose, or share electrons they do so in order to have an electron configuration of a noble gas. f. As you go across the periodic table left to right, electronegativity will increase. g. The number of valence electrons an atom has is equal to the atomic number. h. Fluorine cannot be the central atom due to the fact that is can only accept 2 electrons. i. When a covalent bond occurs, the atoms overlap one another to create a new orbital. The more overlapping, the stronger the bond. j. A triple bond is considered to be a weak bond.

Which of the following does not have a more stable resonance structure?

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Question 21 pts

In the following molecule, which carbons are electron deficient, meaning they hold a partial positive charge (Î´+) in the hybrid structure. All carbon atoms are identified by a number.

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Question 31 pts

Rank the following resonance structures from most to least stable.

III (most stable) > I > II (least stable)

III (most stable) > II > I (least stable)

I (most stable) > II > III (least stable)

II (most stable) > III > I (least stable)

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Question 41 pts

Which of the following accurately depicts a Lewis acid-base reaction where a carbon is acting as the Lewis acid and an oxygen is acting as the Lewis base.

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Question 51 pts

Which of the following statements about Lewis acids and bases is true?

A Lewis base always accepts an electron pair from a Lewis acid.

The interaction between a Lewis acid and a Lewis base creates a covalent bond.

Lewis acids are also commonly called nucleophiles.

A Lewis base always accepts a proton (H+) from a Lewis acid.

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Question 61 pts

A molecular orbital energy diagram was created that contains two bonding orbitals and two antibonding orbitals. How many atomic orbitals were mixed to create all these orbitals?

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Question 71 pts

Which of the following statements about the molecular orbital diagram for H2â is false?

Two atomic orbitals combine to produce two molecular orbitals.

There is one filled bonding orbital.

There is one empty antibonding orbital.

There is a non-zero bond order.

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Question 81 pts

If a p atomic orbital and an s atomic orbital were to interact and combine to create new molecular orbitals, how many antibonding molecular orbitals would be created?

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Question 91 pts

Which of the following contains an aldehyde, an ether and an alcohol? Choose all that apply.

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Question 101 pts

Which of the following contains a carboxylic acid and an ether? Choose all that apply.

CHMI-2426EL Study Guide - Quiz Guide: Newman Projection, Acid Dissociation Constant, Cyclohexane

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