Intensive properties are useful for identifying substances because they: Change when the sample is divided Can be measured with a scale Depend on the amount of substance present D Are the same regardless of the sample size

## Step 1<br />Intensive properties are physical properties that do not depend on the amount of substance present. They are inherent to the substance itself and do not change when the sample is divided. Examples of intensive properties include temperature, pressure, and density.<br /><br />## Step 2<br />On the other hand, extensive properties are those that depend on the amount of substance present. They change when the sample is divided. Examples of extensive properties include mass and volume.<br /><br />## Step 3<br />The statement "Change when the sample is divided" is incorrect for intensive properties. This statement is true for extensive properties.<br /><br />## Step 4<br />The statement "Can be measured with a scale" is not specific to intensive properties. Both intensive and extensive properties can be measured with a scale.<br /><br />## Step 5<br />The statement "Depend on the amount of substance present" is the definition of extensive properties, not intensive properties.<br /><br />## Step 6<br />The statement "Are the same regardless of the sample size" is the correct definition of intensive properties. This is because they do not change with the amount of substance present.