Synthesis, Decomposition & Combustion Reactions

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products. Example: 2HgO → 2Hg + O2.

Front

What is the general formula for a decomposition reaction?

Back

The general formula for a decomposition reaction is AB → A + B.

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product. Example: Na + Br2 → NaBr.

Front

What is the general formula for a synthesis reaction?

Back

The general formula for a synthesis reaction is A + B → AB.

Front

What is a combustion reaction?

Back

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

Front

What are the products of a complete combustion of hydrocarbons?

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The products of complete combustion of hydrocarbons are carbon dioxide (CO2) and water (H2O).

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What is the difference between complete and incomplete combustion?

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Complete combustion occurs with sufficient oxygen, producing CO2 and H2O, while incomplete combustion occurs with limited oxygen, producing CO and/or soot.

Front

What is the significance of balancing chemical equations?

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Balancing chemical equations is important because it ensures the law of conservation of mass is followed, meaning the number of atoms of each element is the same on both sides of the equation.

Front

How do you balance the combustion reaction of methane (CH4)?

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The balanced equation for the combustion of methane is: CH4 + 2O2 → CO2 + 2H2O.

Front

What type of reaction is Al(OH)3 → Al2O3 + H2O?

Back

This is a decomposition reaction.