Question

a. which type of matter can the magnetic filings be classified as? explain
b. during which part of the experiment was a mixture present? explain
c. which part of the experiment contained a heterogeneous mixture? explain

Explanation:

Step1: Define magnetic filings

Magnetic filings are a type of matter that are attracted to magnets. They are typically small pieces of iron or other ferromagnetic materials.

Step2: Answer part a

Magnetic filings can be classified as a solid. They have a definite shape and volume and are made up of particles that are closely packed together.

Step3: Answer part b

A mixture was present from the start when sand and magnetic filings were combined and placed into the container. A mixture is a combination of two or more substances that are not chemically combined and can be separated by physical means.

Step4: Answer part c

The initial state when sand and magnetic filings were combined in the container contained a heterogeneous mixture. A heterogeneous mixture has a non - uniform composition, and in this case, you can see the distinct particles of sand and magnetic filings before separation.

Answer:

a. Solid; they have definite shape and volume and are made of closely - packed particles.
b. From the start when sand and magnetic filings were combined; it is a combination of substances not chemically combined.
c. The initial combination of sand and magnetic filings in the container; it has a non - uniform composition.