Chemical Reactions Review

Front

What is a Single Replacement Reaction?

Back

A chemical reaction where one element replaces another in a compound, represented by the general formula: A + CD -> C + AD.

Front

What is a Combustion Reaction?

Back

A chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat, typically represented as: C_xH_y + O_2 -> CO_2 + H_2O.

Front

What does the symbol 's' represent in chemical equations?

Back

The symbol 's' indicates that a compound is in a solid state.

Front

What is the general reaction scheme for a combustion reaction?

Back

C_xH_y + O_2 -> CO_2 + H_2O.

Front

What is a Double Replacement Reaction?

Back

A chemical reaction where two compounds exchange ions or bonds to form two new compounds, represented by the general formula: AB + CD -> CB + AD.

Front

What is a Synthesis Reaction?

Back

A chemical reaction where two or more simple substances combine to form a more complex product, represented by the general formula: A + B -> AB.

Front

What is a Decomposition Reaction?

Back

A chemical reaction where a single compound breaks down into two or more simpler products, represented by the general formula: AB -> A + B.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is the Law of Conservation of Mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

What is an example of a real-life combustion reaction?

Back

Burning of gasoline in a car engine, where hydrocarbons react with oxygen to produce carbon dioxide and water.