Test 2 Vocab

Question 1

Define Ionic Bond

Answer 1

A bond resulting in a electrostatic attraction from a cation to a anion

Question 2

Define Covalent Bond

Answer 2

A bond created when two atoms share one or more electrons

Question 3

Define Resonance

Answer 3

Characteristic of electron distribution in which two or more Lewis structures represent the same compound.

Question 4

Define Bond Strength

Answer 4

Energy needed to break one mole of a specific covalent bond in the gas phase

Question 5

Define Bond Length

Answer 5

Distance between two nuclei in two atoms joined in a bond.

Question 6

Define Lone pair

Answer 6

Pair of electrons not shared

Question 7

Define Lewis Structure

Answer 7

A two dimensional representation of bonds and lone pairs of valence electrons in a ionic or molecular compound.

Question 8

Define Triple Point

Answer 8

Temperature and pressure at which all three phases of a substance coexist.

Question 9

Define Solubility

Answer 9

Maximum quantity of a given substance that can dissolve in a volume of solution

Question 10

Define Capillary Action

Answer 10

The rise of a liquid in a narrow tube as a result of adhesive forces

Question 11

Define Surface tension

Answer 11

Ability of a surface of a liquid to resist external force

Question 12

Define Viscosity

Answer 12

A measure of a fluids resistance to flow

Question 13

Define Solvent

Answer 13

Component of a solution where the largest amount of mole is present

Question 14

Define Solute

Answer 14

Any component in solution other than the solvent

Question 15

Define Ion-Dipole

Answer 15

Attractive force between an ion and a molecule that has a permanent dipole

Question 16

Define hydrogen bonding

Answer 16

H atom bonded to a N, O, or F

Question 17

Define Dipole-Dipole

Answer 17

Attraction between regions of polar molecules

Question 18

Define London Dispersion Forces

Answer 18

Intermolecular force between an atom or molecule

Question 19

Pi Bond

Answer 19

Covalent bond where electron density is greatest

Question 20

Define Sigma Bond

Answer 20

Covalent bond where highest electron density lies between two atoms on the inter-nuclear axis

Question 21

Define Bond Angle

Answer 21

angle defined by lines joining centers of two atoms

Question 22

Define Dipole

Answer 22

Pair of oppositely charged poles

Question 23

Define VSEPR

Answer 23

Model that predicts arrangement of valence electron pairs surrounding the central atom

Question 24

Define Molecular Geometry

Answer 24

Three dimensional arrangement of atoms in a molecule

Question 25

Define Electron Geometry

Answer 25

Three dimensional representation of bonding pairs

Question 26

Define Steric Number

Answer 26

Number of atoms bonded to the central atom.