1) Which of the following descriptions best classifies aluminum foil?
(a) homogeneous pure element
(b) homogeneous solution of pure compounds
(c) heterogeneous pure element
(d) heterogeneous matter composed of compounds
2) Which of the following descriptions best classifies air?
(a) heterogeneous matter composed of compounds and elements
(b) homogeneous solution of compounds and elements
(c) homogeneous pure compound
(d) heterogeneous matter composed of elements
3) Which of the following descriptions best classifies oatmeal?
(a) homogeneous pure compound
(b) heterogeneous matter composed of pure elements
(c) heterogeneous mixture of compounds
(d) homogeneous solution of elements and compounds
4) Which of the following descriptions best classifies milk?
(a) homogeneous solution of compounds
(b) homogeneous pure element
(c) heterogeneous matter composed of pure elements
(d) heterogeneous mixture of compounds
5) Which of the following descriptions best classifies powdered juice drink dissolved in water?
(a) homogeneous pure compound
(b) heterogeneous mixture of compounds
(c) heterogeneous matter composed of pure elements
(d) homogeneous solution of compounds
6) Which of the following descriptions best classifies salt water?
(a) heterogeneous mixture of compounds
(b) heterogeneous matter composed of pure elements
(c) homogeneous solution of compounds
(d) homogeneous pure compound
7) Which of the following descriptions best classifies a salt block?
(a) homogeneous pure compound
(b) homogeneous solution of elements
(c) heterogeneous mixture of elements
(d) heterogeneous pure compound
8) Which of the following descriptions best classifies natural rubber?
(a) heterogeneous mixture of compounds
(b) homogeneous pure compound
(c) homogeneous solution of elements
(d) heterogeneous pure element