Unit 3 (Part 1) Exam Review - Structure of Matter

Front

What is the definition of density?

Back

Density is the amount of matter (mass) packed into a space (object).

Front

What two types of measurements make up density?

Back

Density is made up of Mass and Volume.

Front

What is an example of a compound?

Back

NO (Nitric Oxide) is an example of a compound.

Front

What is a mixture of elements and compounds?

Back

A mixture of elements and compounds contains both pure elements and compounds combined together.

Front

How many protons are in the element with atomic number 19?

Back

The element with atomic number 19 has 19 protons.

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 only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

What is the significance of mass in density?

Back

Mass is a measure of the amount of matter in an object, which is essential for calculating density.