In your lab group, you are investigating the properties of matter. Your teacher gives you several unknown substances to identify. Select ALL of the PHYSICAL properties that might help you differentiate between the unknowns.

Question

Responses
A colorcolor
B texturetexture
C flammability (ability to catch on fire)flammability (ability to catch on fire)
D boiling pointboiling point
E reaction with acid

Answer 1

To differentiate between unknown substances based on physical properties, you would select the following:

A. color
B. texture
D. boiling point

Flammability (C) and reaction with acid (E) are chemical properties, not physical ones. Therefore, they would not help you differentiate between the unknown substances based on physical characteristics.