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Published byΠαιάν Κομνηνός Modified over 5 years ago
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Equations 1. Multiply each atom in a compound by a coefficient so each side is equal 2. Exothermic – energy out (releases) (-) Endothermic energy in (absorbs) (+)
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Equations 3. Describe the following types of reactions (EXTREMELY IMPORTANT) Synthesis: 2 or more 1 Decomposition: 1 2 or more Combustion: hydrocarbon (HC) + O2 CO2 + H2O Single replacement: AY + B BY + A Double replacement: AY + BX AX + BY Neutralization: HX (acid) + YOH (base) YX (salt) + H2O Polymerization: Making a large molecule by repeating the same small molecule (called a monomer) over and over again [Can be natural (DNA, proteins) or synthetic (plastics, nylon)]
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Equations 4. the number of electrons gained or lost when a chemical bond is made. 5. a. H2SO (because 2(+1) + 1(+6) + 4(-2) = 0) b. F2 0 c. Cl-1 -1 d. CO (+4 + 3(-2) = -2(charge)) e. TiO f. TiO 6. Reaction that involves reduction and oxidation
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Equations 7. Reduction – gains e- so oxidation # goes down
Oxidation – loses e- so oxidation # goes up Mg + H2SO4 MgSO4 + H2 Mg went up (0+2) oxidation H went down (+10) reduction
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