Final Exam Review 2025

Front

What does the symbol inside the circle mean?

Back

yields, or produces

Front

What type of chemical reaction does 2H₂ + N₂ ↔ 2NH₃ represent?

Back

Synthesis

Front

According to the Law of Conservation of Mass, how do the total mass of the Products compare to the total mass of the Reactants?

Back

they will be equal

Front

An atom of oxygen has 8 protons and 10 electrons. What does this mean?

Back

The atom is negatively charged because it has excess electrons.

Front

What is the pH range for bases?

Back

Above 7

Front

What is the pH range for acids?

Back

Below 7

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the difference between a reactant and a product?

Back

Reactants are substances that start a chemical reaction, while products are substances formed as a result of the reaction.

Front

What is an ion?

Back

An atom or molecule that has a net electric charge due to the loss or gain of one or more electrons.