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Questions and Answers
What is the primary difference between a decomposition reaction and a combustion reaction?
What is the process by which an atom, molecule, or ion loses one or more electrons?
What type of reaction occurs when an acid reacts with a base to produce a salt and water?
What type of reaction involves the exchange of partners between two compounds?
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What type of reaction occurs when a more reactive element displaces a less reactive element from a compound?
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What is the necessary condition for a decomposition reaction to occur?
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What is the characteristic of a combustion reaction?
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What is the result of an oxidation reaction?
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Study Notes
Chemical Reactions
Decomposition Reaction
- A reaction where a single compound breaks down into two or more simpler substances
- Example: 2H2O → 2H2 + O2
- Often requires energy input, such as heat or light
Combustion Reaction
- A reaction where a substance reacts with oxygen to produce heat and light
- Example: 2CH4 + 3O2 → 2CO2 + 3H2O
- Often involves the release of energy in the form of heat and light
Oxidation Reaction
- A reaction where an atom, molecule, or ion loses one or more electrons
- Example: 2Cu + O2 → 2CuO
- Often involves the gain of oxygen or the loss of hydrogen
Neutralization Reaction
- A reaction where an acid reacts with a base to produce a salt and water
- Example: HCl + NaOH → NaCl + H2O
- Often involves the combination of hydrogen ions (H+) and hydroxide ions (OH-)
Displacement Reaction
- A reaction where a more reactive element displaces a less reactive element from a compound
- Example: Zn + CuSO4 → ZnSO4 + Cu
- Often involves the replacement of one element with another
Double Displacement Reaction
- A reaction where two compounds exchange partners, resulting in the formation of two new compounds
- Example: NaCl + AgNO3 → NaNO3 + AgCl
- Often involves the exchange of ions between two compounds
Chemical Reactions
Decomposition Reaction
- A single compound breaks down into two or more simpler substances, often requiring energy input
- Can be represented by a general equation: AB → A + B
- Energy input can be in the form of heat, light, or electricity
Combustion Reaction
- A reaction between a substance and oxygen that produces heat and light
- Often involves the release of energy in the form of heat and light
- Can be represented by a general equation: Fuel + Oxygen → Products + Heat + Light
Oxidation Reaction
- Involves the loss of one or more electrons by an atom, molecule, or ion
- Can be represented by a general equation: 2A → 2A+ + 2e-
- Often involves the gain of oxygen or the loss of hydrogen
Neutralization Reaction
- A reaction between an acid and a base that produces a salt and water
- Can be represented by a general equation: Acid + Base → Salt + Water
- Involves the combination of hydrogen ions (H+) and hydroxide ions (OH-)
Displacement Reaction
- A more reactive element displaces a less reactive element from a compound
- Can be represented by a general equation: A + BC → AC + B
- Often involves the replacement of one element with another
Double Displacement Reaction
- Two compounds exchange partners, resulting in the formation of two new compounds
- Can be represented by a general equation: AB + CD → AD + CB
- Often involves the exchange of ions between two compounds
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Description
This quiz covers different types of chemical reactions, including decomposition, combustion, and oxidation reactions. Learn about the definitions, examples, and characteristics of each type.
