Chemistry Chapter 9

ON Rules

100

Alkali Metals (Group 1) always have a ______ oxidation number in compounds 

+1

200

Alkaline-earth Metals (Group 2) always have a ______oxidation number in compounds 

+2 

300

DOUBLE JEOPARDY x2 POINTS 

Hydrogen usually has a ______ oxidation number when bonded to a nonmetal . 

Hydrogen has a ______ oxidation number when bonded to metals. 

+1  - nonmetal 

-1 metals 

400

Halogens have what oxidation number when bonded to metals?  

Remember if its halogens are bonded with another nonmetal, the higher electronegativity gets the negative charge. 

-1 

500

oxygen usually has a -2 as the oxidation number unless its bonded with which element? 

FYI remember the other exception is perioxide when it is 02 -2

Fluorine 

ON examples

100

Determine the ON of sodium in Na20? 

+1 

200

What is the oxidation number for Iron in Iron(II) oxalate? 

+2 

300

Using the tables on pg 207 what is the oxidation number for ammonium? 

+1

400

Determine the ON of Barium and Iodine in BaI2

Ba= +2 

I= -1

500

Determine the ionic command formula for Calcium and Oxygen combined using their ON to help you

CaO

Naming Ionic Compounds

100

How would you write the formula for Aluminum and Chlorine 

AlCl3

200

How would you name Lithium and Fluorine 

LiF

300

How would you name the following compound: 

Rb2S

Rubidium Sulfide 

400

Name the following compound : CaS04

You can refer to periodic table and pg 207 

Calcium Sulfate 

*Ca has +2 

 Sulfate has -2 

500

Name the following compound by using the Stock System for naming :

FeCl3 

Iron (III) Chloride 

Naming Ionic Covalent compounds

100

What is the greek prefix for eight? 

octa

200

What is the rule for mono with covalent naming? 

The first element name will not use mono if there is only 1 present in the compound. 

300

You use the criss cross method in covalent compound naming : T or F 

False - that is for ionic 

400

Write the formula for dinitrogen trioxide 

N203

500

Write the compound name for N2O

dinitrogen monoxide 

Hydrates, Acids, and terms

100

What is a compound that holds a certain amount of water within their crystalline structures? 

Hydrates 

200

what do you put before the word hydrate in a hydrate compound name to represent the number of waters in the structure? 

Greek prefix

300

How can you identify an acid by simply looking at it? 

Begins with Hydrogen 

400

A covalently bonded group of atoms that carries a charge of its own is called a(n)

polyatomic ion

500

An anion composed of Oxygen and another element is called 

Oxyanion