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Types of Chemical Reactions. Chem -To-Go Lesson 21 Unit 5. SYNTHESIS REactions. DEFINITION : two or more compounds or elements go together to build a more complex compound GENERIC EQUATION : A + B AB EXAMPLE : 2Al + 3Br 2 2AlBr 3. Decomposition reactions.
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Types of Chemical Reactions Chem-To-Go Lesson 21 Unit 5
SYNTHESIS REactions • DEFINITION: two or more compounds or elements go together to build a more complex compound • GENERIC EQUATION: A + B AB • EXAMPLE: 2Al + 3Br2 2AlBr3
Decomposition reactions DEFINITION: a single compound breaks down into 2 or more elements or compounds • GENERIC EQUATION: AB A + B • EXAMPLE: H2O2 H2O + O2
Combustion of hydrocarbon reactions • GENERIC EQUATION: CxHy + O2 CO2 + H2O • EXAMPLE: CH4 + 2O2 Co2 + 2H2O DEFINITION: diatomic oxygen combines with a hydrocarbon to release energy in the form of heat and light
Single replacement reactions DEFINITION: a single element reacts with a compound and replaces one of the compound elements • GENERIC EQUATION: A + BX --> AX + B • METAL EXAMPLE: K + CuSO4 K2SO4 + Cu • NONMETAL EXAMPLE: Cl2 + KBr KCl + Br2
Double replacement reactions DEFINITION: an ionic compound reacts with another ionic compound; the ions switch partners. • GENERIC EQUATION: AX + BY --> AY + BX • EXAMPLE: CoCl2 + Na3(PO4)2 Co3(PO4)2 + NaCl