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To identify and classify chemical compounds you will need the patterns given below and compare it to a given equations.
5 Types of reactions to identify:
Combustion
Synthesis
Decomposition
Single Replacement
Double Displacement
Definitions & Patterns to look for:
In case you missed it (or need to catch back up!) Check out this awesome video below by sciencepost on youtube:
Combustion - Occurs in the presence of O2 (molecular oxygen, found in the air)
Pattern:
O2 à CO2 + H2O
must have oxygen on the reactant side
must have some form of CO2 on the product side (not necessarily bonded together).
Synthesis ("to make") - The combination of 2 or more reactants to form a compound.
- 1 product
Pattern:
A + B à AB
Decomposition ("to break down") - a compound breaks down into simpler products.
pattern:
AB à A + B
Single Replacement - when a single element switches places with an ion in an ionic compound.
Pattern:
A + BC à B + AC
Double Displacement - when ions in 2 compounds switch places.
Pattern:
AB + CD à AC + BD
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