Chemical Reactions Types

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