Which statement describes an intensive property of matter?
a. it is the same for every sample of a single substance
b. it depends on how a substance was formed
c. it is the same for every sample of every substance
d. it depends on the amount of substance present

The correct option is A.

Matters have two basic types of properties, these are extensive and intensive properties. Extensive properties are those characteristics of matter that depend on the quantity of matter that is been measured. Examples of extensive properties are mass and volume. Intensive properties on the other hand refers to those characteristics of matters that do not depend on the amount of substance that is present. Examples of intensive properties are color and density.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6