Matter review

Front

What does the Law of Conservation of Mass state?

Back

Matter is neither created nor destroyed.

Front

How many elements are in the compound PbNO3?

Back

3

Front

What is density?

Back

Density is the mass of an object divided by its volume.

Front

How many nitrogen atoms are in NH3?

Back

1

Front

How many nitrogen atoms are in 4NH3?

Back

4

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is the significance of the periodic table?

Back

It organizes all known elements based on their properties and atomic structure.