Types of Chemical Reactions

Front

What is a chemical reaction?

Back

A process in which substances (reactants) undergo a transformation to form new substances (products).

Front

What are the main types of chemical reactions?

Back

1. Synthesis (Combination) 2. Decomposition 3. Single Replacement 4. Double Replacement 5. Combustion

Front

Define Synthesis Reaction.

Back

A type of reaction where two or more reactants combine to form a single product (A + B → AB).

Front

Define Decomposition Reaction.

Back

A type of reaction where a single compound breaks down into two or more simpler products (AB → A + B).

Front

What is a Single Replacement Reaction?

Back

A reaction where one element replaces another in a compound (A + BC → AC + B).

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What is a Double Replacement Reaction?

Back

A reaction where the anions and cations of two different compounds exchange places to form two new compounds (AB + CD → AD + CB).

Front

What is a Combustion Reaction?

Back

A reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat (typically involves hydrocarbons).

Front

What is a precipitate in a chemical reaction?

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A solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

Example of a Synthesis Reaction.

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2H₂ + O₂ → 2H₂O (Hydrogen and oxygen combine to form water).

Front

Example of a Decomposition Reaction.

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2H₂O → 2H₂ + O₂ (Water breaks down into hydrogen and oxygen).