Unit 4 Chemistry

What is the ending for the higher charge multiple-ion elements?

-ic

What is the ending for the lower charge of multiple-ion elements?

-ous

What is the name for Copper (II)

Cupric

What is the name for Copper (I)

Cuprous

What is the name for Iron (III)

Ferric

What is the name for Iron (II)

ferrous

What is the name for Lead (IV)

plumbic

What is the name for Lead (II)?

Plumbous

What is the name for antimony (V)?

stibnic

What is the name for antimony III?

Stibnous

What is the name for tin (IV)

stannic

What is the name for Tin (II)

Stannous

What are polyatomic ions?

ions that are made of more than one atom

What does -ate mean in a polyatomic ion?

standard/regular amount of O atoms

How many O atoms do outys have?

3

How many O atoms do innys have?

4

What does -ite mean in a polyatomic atom?

1 more oxygen atom

What does per___-ate mean in a polyatomic atom?

one less oxygen atom

Formula for ammonium

NH4+

Formula for acetate

C2H3O2-

Formula for cyanate

OCN-

Formula for cyanide

CN-

Formula for bisulfide

HS-

Formula for hydroxide

OH-

Formula for permanganate

MnO4

Formula for thiocyanate

SCN

Formula for chromate

CrO4 2-

Formula for oxalate

C2O4 2-

Formula for peroxide

O2 2-

Formula for citrate

C6H5O7

What is a redox reaction?

transfer of one or more electrons from one reactant to another

What is oxidation state?

A number assigned to an element in chemical compound, which represents the number of electrons lost or gained by an atom of that element in the compound.

When you oxidize something, does it gain or lose oxygen?

gain oxygen

When you reduce something, does it gain or lose oxygen?

losing oxygen

In the following reaction, is magnesium oxidized or reduced (based on oxygen): 2Mg + O2 -> 2MgO

Oxidized, since it gained two oxygen atoms

What is the oxidation state of any atom by itself or in its natural state?

zero

What is Cl2 oxidation state?

0, since it is a diatomic molecule