Classification of Matter

How is matter found on Earth primarily classified?

• Pure substance or solution

• Element or compound

• Pure substance or mixture

• Homogeneous or heterogeneous

What is a pure substance?

• A combination of different elements

• A substance that can be physically separated

• A substance that is either an element or a compound

• A mixture that is uniform throughout

What type of substance are all elements found on the periodic table?

• Mixtures

• Compounds

• Pure substances

• Solutions

How can elements be separated?

• Physically

• Chemically

• Through a physical or chemical process

• They cannot be chemically separated

What are compounds?

• Substances that can be physically separated

• Elements bonded together

• Types of heterogeneous mixtures

• Substances that are not uniform

Water (H2O) is an example of what type of pure substance?

• An element

• A compound

• A homogeneous mixture

• A heterogeneous mixture

What is required to separate the elements in a compound like carbon dioxide?

• A physical process

• A chemical process

• Filtration

• Evaporation

What is a mixture?

• A substance that cannot be separated

• A combination of substances that can be physically separated

• Elements bonded together

• A substance with a fixed composition

What are the two main types of mixtures?

• Elements and compounds

• Pure and impure

• Homogeneous and heterogeneous

• Solutions and suspensions

What describes a homogeneous mixture?

• It is not uniform throughout.

• It can be easily separated by hand.

• It is uniform, or the same throughout.

• It requires a chemical process to separate.