Question

1. diontes teacher has given him a sample that contains a mixture of salt, sand, and iron filings. he is instructed to separate the mixture into the three individual components. what would be the best physical property to focus on for the first step in separating the mixture?

a. density
b. electrical conductivity
c. magnetism
d. melting point

Explanation:

Step1: Analyze properties

Iron filings are magnetic, while salt and sand are not.

Step2: Determine separation method

Using magnetism (property C) can separate iron filings first.

Answer:

C. magnetism