4.7 Types of Chemical Reactions Vocab

Contains vocabulary on Precipitation Reactions, Oxidation-Reduction Reactions, and Oxidation Numbers.

What is another term for Oxidation Reduction Reactions?

What is another term for Oxidation Reduction Reactions?

Redox Reactions

What happens during a Redox Reaction?

One substance gets oxidized and the other substance gets reduced.

What happens when something is Oxidized?

It loses electrons.

What happens when something is Reduced?

It gains electrons.

Rule #1 for determining Oxidation Numbers:

For an atom in its elemental form, its oxidation number is 0.

Rule #2 for determining Oxidation Numbers:

For a monatomic ion, its oxidation number is equal to its charge.

What is a Monoatomic ion?

A charged particle that consists of any one atom.

Rule #3 for determining Oxidation Numbers:

The oxidation number for Oxygen in a molecular compounds is -2.

Rule #4 for determining Oxidation Numbers: (2 bullet points)

• Hydrogen has a charge of +1 when bonded to a Non-Metal

• Hydrogen has a charge of -1 when bonded to a Metal.

Rule #5 for determining Oxidation Numbers:

The most electronegative element has an oxidation number equal to its charge as an ion.

Rule #6 for determining Oxidation Numbers:

The sum of the oxidation numbers for all of the atoms in a compound must equal the overall charge of that compound.

What is a diatomic element?

An element that when by itself exists in a pair.

List all of the Diatomic Element (There are 7):

1. Br

2. I

3. N

4. Cl

5. H

6. O

7. F

What type of reaction is a combustion reaction?

Redox

What are the products of combustion?

CO2 and H2O

What reactant is required in all combustion reactions?

O2

WHat does the mnemonic OIL RIG stand for? (Ex.
O -
R - )

Oxidization Is Losing
Reduced is Gaining

What does the mnemonic LEO SAYS GER stand for?

Losing Electrons Oxidization
Says
Gain Electrons Reduction

What is the Oxidizing Agent?

Reduced

What is the Reducing Agent?

Oxidized