Unit 2: Bonding, Naming and Writing compounds Study Guide

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Ammonium phosphate

(NH4)3 PO4

Copper (II) bromite

CuBr2

N2S

Dinitrogen Sulfide

P2Br4

Diphosphrus tetrabromide

Iron (III) hydroxide

Fe(OH)3

Lithium sulfite

LiSO3

MgBr2

Magnesium Bromide

Mg(ClO)2

Magnesium Hypochlorite

Hg(CN)2

Mercury II Cyanide

Mo(C2H3O2)

Molybdenum Acetate

Dinitrogen trioxide

N2O3

Nitrogen trichloride

NCL3

NO2

Nitrogen dioxide

WO2

Tungsten IV Oxide

How is an element different than a compound?

While elements and compounds are both pure substances elements are only made of one kinds of atom while compounds are composed of two or more atoms.

Zinc hydrogen carbonate

ZnHCO3

mixture of two compounds

two types of compounds present

What is a compound? Two examples

A compound is a pure substance composed of two or more elements that are chemically combined. Compounds have a specific ratio. EX water (hydrogen and oxygen) and salt (sodium chloride)

What is a mixture? (remember two types-heterogenous and homogenous) two examples of each.

A mixture is composed of two or more substances physically combined. A mixture has no specific ratio. *** Heterogeneous mixtures look different throughout, you can see individual parts and the mixture may settle upon standing EX trail mix and milk. *** Homogeneous mixtures look the same throughout, you cannot see differences, are also called solutions EX: lemonade and air

Gold (III) oxide

Ag2O3

Aluminum periodate

Al(IO4)3

What is an element? Two examples

An element cannot be broken down, it is a pure substance made up of one kind of atom. EX Hydrogen and Chlorine

Silver carbonate

Au2CO3

Boron tetrahydride

BH4

Barium nitrite

Ba(NO2)2

BF3

Boron Trifloride

CaO

Calcium Oxide

Cr(CrO4)3

Chromium VI Chromate

Potassium dichromate

K2CR2O7

Li2S

Lithium Sulfide

Phosphorus pentafluoride

PF5

Pu(OH)3

Plutonium III hydroxide

Heterogeneous mixture

Salt and Pepper mixed Bag of pencils and pens Chex Mix

SiO2

Silicon Dioxide

NaBr

Sodium Bromide

SF6

Sulfur Hexafloride

SO3

Sulfur Trioxide

Homogenous mixture

Tea Apple sauce Diet Coke Mayonnaise

Pure Element

only one type of atom present.

pure compound

only one type of compound present

Mixture of two elements

two types of uncombined atoms present


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