Chem Notes Mod 3

Question 1

What is crystalline

Answer 1

A material with a long range highly ordered lattice

Question 2

What is Amorphous

Answer 2

This has no overall order in the extended structure

Question 3

What is a molecule

Answer 3

Molecules are a collection of atoms bound together

Question 4

What is a molecular substance?

Answer 4

Any substance composed of distinct molecules

Question 5

Ionic Bonds

Answer 5

Ionic Bonds are formed by the attraction of ions with opposite charges

Question 6

What are Ions bound together in?

Answer 6

The electrostatic force.

Question 7

what is electronic force controlled by?

Answer 7

Coulomb’s law.

Question 8

What is Coulomb’s law

Answer 8

This is the strength of the attraction where the smaller the distance and the larger the charges the stronger the force holding oppositely charged Ions Together

Question 9

What is lattice energy

Answer 9

The sum of The Ionic Bonds in a lattice

Question 10

What is cleaving?

Answer 10

When you break a crystal along a perfectly straight plane.

Question 11

What is covalent Bond?

Answer 11

This is a type of bonding that occurs between electrons in one atom and the nucleus of another atom.

Question 12

What is a double bond

Answer 12

The sharing of two pairs of electrons

Question 13

What is a triple bond

Answer 13

The sharing of three pairs of electrons

Question 14

What is Polyatomic Ions?

Answer 14

These are ions that are made up of Multiple Atoms

Question 15

Define electronegativity

Answer 15

This is the numerical rating of an atoms ability to attract the shared electrons to itself

Question 16

What is Polar covalent Bond?

Answer 16

This is the unequal electron sharing

Question 17

Binary Ionic Compounds

Answer 17

These are composed of a metal and a non metal: adds ( IDE, as suffix)

Question 18

Binary Covalent Compounds

Answer 18

These are composed of two nonmetals or metalloids, ( this uses the prefix to indicate how many atoms of each type are present)

Question 19

What do intramolecular forces do?

Answer 19

They hold molecules together

Question 20

What does the bond formation do ?

Answer 20

ALWAYS releases energy.

Question 21

What does the breaking of a bond do?

Answer 21

It always Takes energy

Question 22

In a Lewis dot diagram

Answer 22

The paired electrons are two electrons that are present on ONE SIDE

The Unpaired electrons are only one electron on one side.

Question 23

What is a multiple bond?

Answer 23

This is when two atoms share more than one pair of electrons with each other.

Question 24

What is a single Bond.

Answer 24

The sharing of one pair of electrons.

Question 25

What prefix do the Acids with no oxygen atoms use?

Answer 25

HYDRO

Question 26

What is the steric Number of an atom? .

Answer 26

The steric number of an atom is the number of electron groups around an atom.

Question 27

Define the following FOrces

Answer 27

London forces: this is the weakest force there is, they occur between polar and non. Polar molecules Dipole - dipole Forces: Attractive Forces between the positive end of one polar molecule3 and the negative end of another Polar molecule Hydrogen Bonding: A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.

Question 28

What is single replacement

Answer 28

when One element replaces the other.

Question 29

What is double replacement

Answer 29

This is when there is 2 products and 2 reactants

Question 30

Define decomposition

Answer 30

This is when a compound breaks down into two simpler compounds

Question 31

Define Combination

Answer 31

When two substances give rise to another substance

Question 32

What is combustion

Answer 32

A reaction with oxygen and to give carbon dioxide and water.

Question 33

What is precipitation

Answer 33

Results in a solid, liquid, or gas form.

Question 34

what is solubility?

Answer 34

This is can be described as solid or a liquid form.

Question 35

What is net ionic

Answer 35

This happens after striking out spectator ions.

Question 36

What does VESPR stand for?

Answer 36

Valance shell electron pair repulsion theory.

Question 37

Define Vaporization

Answer 37

When a liquid turns to a gas

Question 38

Define Boiling Point

Answer 38

The temperature at which liquids boil

Question 39

Define freezing point

Answer 39

The temperature at which liquids freezes

Question 40

Define Sublimation

Answer 40

When a solid turns directly into a gas form.