Reaction type and balancing eq review

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, ensuring the law of conservation of mass is followed.

Front

What is the general form of a synthesis reaction?

Back

A synthesis reaction occurs when two or more reactants combine to form a single product, represented as A + B → AB.

Front

What is a decomposition reaction?

Back

A decomposition reaction occurs when a single compound breaks down into two or more simpler products, represented as AB → A + B.

Front

Define a double replacement reaction.

Back

A double replacement reaction occurs when two compounds exchange ions to form two new compounds, represented as AB + CD → AD + CB.

Front

What is a combustion reaction?

Back

A combustion reaction occurs when a substance reacts with oxygen, releasing energy in the form of light or heat, typically producing CO2 and H2O.

Front

How do you balance the equation: H2 + O2 → H2O?

Back

The balanced equation is 2H2 + O2 → 2H2O.

Front

What is the law of conservation of mass?

Back

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.

Front

What is the product of the reaction between sodium and chlorine?

Back

The product is sodium chloride (NaCl), represented as 2Na + Cl2 → 2NaCl.

Front

What is the significance of coefficients in a chemical equation?

Back

Coefficients indicate the number of moles of each substance involved in the reaction, helping to balance the equation.

Front

What is an example of a single replacement reaction?

Back

An example is Zn + CuSO4 → ZnSO4 + Cu, where zinc replaces copper.