Topic 1B Review

Front

What is the total number of protons and neutrons in an atom called?

Back

Mass number

Front

What term describes how quickly or slowly reactants turn into products in a chemical reaction?

Back

Reaction Rate

Front

What does the presence of bubbles in a chemical reaction indicate?

Back

It could show that a gas is forming.

Front

What is a major cause of acid rain?

Back

Burning fossil fuels for energy.

Front

How is acid rain formed?

Back

Sulfur dioxide and nitrogen oxide mix with water in the air.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed.

Front

What is concentration in the context of a chemical reaction?

Back

The amount of a substance in a given volume of solution.

Front

What is the role of temperature in a chemical reaction?

Back

Temperature can affect the reaction rate; higher temperatures usually increase the rate.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not alter the substance's chemical composition, while a chemical change does.