Pure Substances and Mixtures

Front

Which of these is an element? Salt (NaCl), Water (H20), Oxygen (O), Carbon Dioxide (CO2)

Back

Oxygen (O)

Front

Which of these is a compound? Aluminium (Al), Carbon Dioxide (CO2), Nitrogen (N), Sand

Back

Carbon Dioxide (CO2)

Front

Which of these is a mixture? Laundry Detergent, Salt (NaCl), Oxygen (O), Fluorine (Fl)

Back

Laundry Detergent

Front

What is an example of a mixture? Options: iron, ice, soil, gold

Back

soil

Front

Which of the following is classified as a pure substance? Lemonade, Fruit punch, ketchup, Helium

Back

Helium

Front

___________ are the smallest unit of an element that maintains the properties of that element.

Back

Atoms

Front

True or False: elements AND compounds are pure substances.

Back

True

Front

Back

Mixture

Front

Which of the following is NOT a mixture? milk, lemonade, vegetable salad, aluminum

Back

aluminum

Front

A ______________ mixture is one that does not have a uniform composition.

Back

heterogeneous