Chem-To-Go Lesson 22Unit 5

PREDICTING PRODUCTS OF

HYDROCARBON COMBUSTION,

SINGLE REPLACEMENT, AND

DOUBLE REPLACEMENT

REACTIONS

• PATTERN: CxHy + O2 CO2 + H2O• SAME PRODUCTS EVERY TIME

Combustion of Hydrocarbon

• PATTERN: A + BX AX + B• USE ACTIVITY SERIES• Metal replaces other metal.

Single Replacement of

Metals

• PATTERN: Y2 + BX BY + X2

• USE ACTIVITY SERIES• Halogens are diatomic!

Single Replacement of

Halogens

• PATTERN: AX + BY AY + BX• IONS SWITCH PARTERS• Criss-cross every compound.

Double Replacement

USING PATTERNS TO PREDICT

Example: Write a chemical equation for the combustion of carbon tetrahydride.

COMBUSTION OF HYDROCARBON

Example: Write a chemical equation for iron reacting with nickel (II) chloride.

SINGLE REPLACEMENT OF METALS

Example: Write a chemical equation for chlorine reacting with strontium bromide.

SINGLE REPLACEMENT OF HALOGENS

Example: Write a chemical equation for lithium dichromate reacting with aluminum nitrate.

DOUBLE REPLACEMENT