Question

which is an example of a mixture?
a. aluminum
b. milk
c. salt
d. water

Explanation:

A mixture is a combination of two or more substances that retain their individual properties.

• Aluminum (\(Al\)) is an element, a pure substance.
• Salt (\(NaCl\)) is a compound, a pure substance.
• Water (\(H_2O\)) is a compound, a pure substance.
• Milk contains water, fats, proteins, etc., combined physically, so it is a mixture.

Answer:

B. Milk