Classify each property as intensive or extensive.

reactivity with acid

volume

length

left side is intensive property

right side is extensive property

Okay... so on the left is going to be Reactivity with acid as on the right is going to be Length,and volume...

Explanation:

Extensive Properties:

linearly dependent on the amount of substance. Examples: mass, volume, energy

Intensive Properties:

independent of the amount of substance. Examples: temperature, pressure, density

hope this help and have a great day...

Explanation:

Properties that do not depend on the amount of matter are known as intensive properties.

For example, boiling point, melting point, reactivity with an acid etc.  

On the other hand, properties which depend on the amount of matter are called extensive properties.

For example, volume, length, mass etc.

Thus, we can conclude that given properties are classified as follows.

a corroding iron, if that's one of your choices