Types of Chemical Reactions

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What is a Combustion Reaction?

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A combustion reaction is a chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat. Example: CxHy + O2 → H2O + CO2.

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What is a Synthesis (Combination) Reaction?

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A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product. Example: Si + S8 → Si2S4.

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What is a Single Replacement Reaction?

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A single replacement reaction is a chemical reaction where one element replaces another element in a compound. Example: A + BC → AC + B.

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What is a Double Replacement Reaction?

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A double replacement reaction is a chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: KOH + H3PO4 → K3PO4 + H2O.

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What are Reactants in a Chemical Equation?

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Reactants are the starting substances in a chemical reaction, found on the left side of the equation. Example: In H2 + O → H2O, H2 and O are the reactants.

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What are Products in a Chemical Equation?

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Products are the substances formed as a result of a chemical reaction, found on the right side of the equation. Example: In H2 + O → H2O, H2O is the product.

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What is the Law of Conservation of Mass?

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The law states that mass is neither created nor destroyed in a chemical reaction; the mass of reactants equals the mass of products.

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What is a Decomposition Reaction?

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A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products. Example: AB → A + B.

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What is a Balanced Chemical Equation?

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A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, following the law of conservation of mass.

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What is the role of a Catalyst in a Chemical Reaction?

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A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.