Types of Chemical Reactions

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What is a synthesis (or combination) reaction?

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A synthesis reaction is a type of chemical reaction where two or more reactants combine to form a single product. Example: P4 + 3 O2 → 2 P2O3.

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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: 2 H2O → 2 H2 + O2.

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What is a combustion reaction?

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A combustion reaction is a type of chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of light and heat. Example: CH4 + 2 O2 → CO2 + 2 H2O.

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What is a double displacement reaction?

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A double displacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: 2 RbNO3 + BeF2 → Be(NO3)2 + 2 RbF.

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What is a single displacement reaction?

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A single displacement reaction is a type of chemical reaction where one element replaces another element in a compound. Example: Zn + 2 HCl → ZnCl2 + H2.

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How do you balance a chemical equation?

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To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.

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What is the law of conservation of mass?

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

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What is an example of a synthesis reaction?

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An example of a synthesis reaction is: 2 H2 + O2 → 2 H2O.

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What is an example of a decomposition reaction?

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An example of a decomposition reaction is: 2 NaCl → 2 Na + Cl2.

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What is an example of a combustion reaction?

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An example of a combustion reaction is: C3H8 + 5 O2 → 3 CO2 + 4 H2O.