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Material properties

par djhg la

Tree organigram

par Chynara Yusupova

Unit 7: Elements and Compounds

par Amber Rae

31137 1-1/-\X0|2

par Andrew Swenson

Writing Formulas

Hydrocarbons

Check the Prefix and Suffix for the hydrocarbons Methane

the suffix "ane" has the formula Cn H2n +2

add the prefix to the end of H

C1 H2(1) +2

solve and reduce

C1 H4

Ionic Compound

Identify Element Mg(ClO3)-1

Identify polyatomic or nonmetal (ClO3)-1

Find oxidation number Mg+2(ClO3)-1

Criss Cross numbers of oxidation to make subscripts

Reduce to eliminate the 1s

Acids

Ternary(H+polyatomic Ion)

Chloric Acid

Change "ic" to "ate"

Find the symbol Chlorate, attach the hydrogen symbol to the front of the polyatomic compud

HClO3

Binary(Acids H+_)

Hydrosulfuric Acid

Hydro becomes H remove "ic" to get Sulfer (S)

Find the oxidation number H+1S+2

Criss cross H2S1

Reduce H2S

Molecular Compounds

Phosphorus pentachloride

Identify subscript with pretext P1Cl5

Remove 1s PCl5