Question

question 5 (3 points)
title: ch - 01 - 10
pencil \lead\ is actually made of a form of carbon known as graphite. this is an example of what type of matter?
a a heterogeneous mixture
b an element
c a compound
d a homogeneous mixture

Explanation:

Graphite is a form of carbon. Carbon is an element, which is a pure substance made up of only one type of atom. A heterogeneous mixture has visibly different parts, a compound is made of two or more different elements chemically combined, and a homogeneous mixture has a uniform composition but is a combination of substances. Since graphite is just carbon, it is an element.

Answer:

B. an element