Physical Science Unit 1 Review

Front

What is the correct formula for aluminum oxide?

Back

Al₂O₃

Front

What happens to the volume of a gas when the temperature decreases?

Back

The volume decreases.

Front

What is the correct name for MgF₂?

Back

magnesium fluoride

Front

What happens to the average speed of gas molecules when heated?

Back

The average speed of the molecules increases.

Front

Which two elements have similar physical and chemical properties: Ca & Mg or K & Mg?

Back

Ca & Mg

Front

What is the relationship between temperature and volume in gases?

Back

As temperature decreases, volume decreases (Charles's Law).

Front

Define the term 'molecule'.

Back

A molecule is a group of two or more atoms bonded together.

Front

What is the significance of the Periodic Table in chemistry?

Back

It organizes elements based on their properties and atomic structure.

Front

What is the formula for calculating density?

Back

Density = Mass/Volume

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom; a compound is made of two or more different atoms chemically bonded.