identifying reaction types and balancing equations Identifying reaction types and balancing equations

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6 Terms

1
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Synthesis or combination (S)

Two elements reacting to from a compound

A+B➡AB

Examples: H2+F2➡2HF

Na+O2➡2Na2O

2
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Decomposition (D)

Compound splits into two products

AB➡A+B

Examples: 2H2O ➡2H2+O2

2HI➡H2+I2

MgCl2➡Mg+Cl2

3
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Single replacement (Sr)

Single element reacts with a compound

⬇ ⬇

A+BC➡B+AC. A<>B

⬇⬇

AB+C➡AC+B. B<>C

Examples: CuI2+Br2➡CuBr2+I2

4
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Double replacement reaction (Dr)

Two ionic compounds combining

AB+CD➡AD+CB B<>D

⬆ ⬆

Examples:

K2Co3+Ba (OH)2➡2KOH+BaCo3

⬆ ⬆ Co3<>(OH)2

5
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Combustion of carbons (C)

Hydrocarbon + Co2 +H2O+heat

(CH)

Examples: 2C2H6+7O2➡4Co2+6H2o + heat

6
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Neutralization

Acid+ base➡H2O + salt

Examples: H2SO4 + 2KOH➡2H2O+K2SO4

Acid+ base➡water +salt