Classification of Matter

Front

Which of the following are pure substances? Options: solutions, compounds, homogeneous mixtures, colloids

Back

compounds

Front

Which of the following is NOT a pure substance? Options: milk, oxygen, water, carbon dioxide

Back

milk

Front

A substance that is made up of only one kind of atom is a(an)

Back

element

Front

If an unknown substance CANNOT be broken down into simpler substances, it is

Back

an element

Front

If a material contains three elements joined in a fixed proportion, it is a(an)

Back

compound

Front

Why is water considered a compound?

Back

always has two hydrogen atoms for each oxygen atom

Front

Which of the following is a mixture? Options: carbon dioxide, silicon, silicon dioxide, sand

Back

sand

Front

Characteristic of a mixture? Options: has varying properties, has a fixed composition, contains only pure substances, does not reflect light

Back

has varying properties

Front

A mixture that appears to contain only one substance is a(an): homogeneous mixture, heterogeneous mixture, compound, element

Back

homogeneous mixture

Front

Which of the following is a heterogeneous mixture? Options: water in a swimming pool, sugar water, a jar of mixed nuts, stainless steel

Back

a jar of mixed nuts