Unit 5 Review Chem

Front

What type of reaction is represented by the equation Ag₂O → Ag + O₂?

Back

Decomposition reaction: A reaction where a single compound breaks down into two or more simpler products.

Front

What are the coefficients needed to balance the reaction KNO₃ → KNO₂ + O₂?

Back

2, 2, 1: This means 2 KNO₃ molecules produce 2 KNO₂ and 1 O₂ molecule.

Front

How do you balance the equation CF₄ + Br₂ → CBr₄ + F₂?

Back

1, 2, 1, 2: This indicates 1 CF₄ reacts with 2 Br₂ to produce 1 CBr₄ and 2 F₂.

Front

What are the coefficients needed to balance SnO₂ + H₂ → Sn + H₂O?

Back

1, 2, 1, 2: This means 1 SnO₂ reacts with 2 H₂ to produce 1 Sn and 2 H₂O.

Front

What does the law of conservation of mass state?

Back

The mass of the reactants is equal to the mass of the products in a chemical reaction.

Front

Define 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.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a chemical reaction where a single compound breaks down into two or more simpler substances.

Front

What is the purpose of balancing chemical equations?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation, adhering to the law of conservation of mass.

Front

What is a single replacement reaction?

Back

A single replacement reaction is a type of chemical reaction where one element replaces another in a compound.

Front

What is a double replacement reaction?

Back

A double replacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds.