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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