Types of chemical reactions and balancing chemical equations

Front

What must be true about the number of atoms in a chemical reaction?

Back

The number of atoms you begin with must be the same as the number of atoms you end with.

Front

What type of reaction is represented by the equation Si + S8 → Si2S4?

Back

Synthesis (combination) reaction.

Front

What is a Single Replacement reaction?

Back

A reaction where one element replaces another in a compound.

Front

What indicates a precipitation reaction in the equation AgNO3 (aq) + NaOH (aq) → AgOH (s) + NaNO3 (aq)?

Back

The (s), meaning the formation of a solid.

Front

What type of reaction involves two reactants and one product?

Back

Synthesis reaction.

Front

Define a Decomposition reaction.

Back

A reaction where one compound breaks down into two or more simpler substances.

Front

What is a Combustion reaction?

Back

A reaction that involves the burning of a substance in the presence of oxygen, producing heat and light.

Front

What is the general form of a Double Replacement reaction?

Back

AB + CD → AD + CB, where two compounds exchange components.

Front

What is the Law of Conservation of Mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it remains constant.

Front

What does (aq) signify in a chemical equation?

Back

(aq) indicates that a substance is dissolved in water, meaning it is in an aqueous solution.