Unit 04 Test Review - IPC

Front

What does the Law of Conservation of Mass state?

Back

Matter is neither created nor destroyed in a chemical reaction.

Front

How does the equation 2H₂ + O₂ → 2H₂O demonstrate the law of conservation of mass?

Back

The reactants and product contain the same number and type of atoms.

Front

Which element is represented by the letter C?

Back

Carbon.

Front

Which equation demonstrates the law of conservation of mass?

Back

2K + Cl₂ → 2KCl.

Front

If you start with 40g of hydrogen peroxide, how much should you end up with after decomposition according to the law of conservation of mass?

Back

40g.

Front

What is a decomposition reaction?

Back

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

Front

What is the significance of balancing chemical equations?

Back

It ensures that the same number of each type of atom appears on both sides of the equation, reflecting the law of conservation of mass.

Front

What are reactants in a chemical reaction?

Back

Substances that undergo change during a chemical reaction.

Front

What are products in a chemical reaction?

Back

Substances that are formed as a result of a chemical reaction.

Front

What does it mean for a chemical equation to be balanced?

Back

It has the same number of each type of atom on both sides of the equation.