Question

Select the physical properties. select all that apply. density hardness boiling point melting point reactivity fllammability

Answer 1

Answer: Density, Hardness, Boiling point, Melting Point

Explanation: Physical Properties are those properties which can be measured. These are those observables which can be used to defined to the state of the system and which do not bring any change in the molecular composition of the system.

Whereas Chemical Properties are those which can bring changes in the original identity of the composition.

Out of the given, Density, Hardness, Boiling Point and Melting Point r the properties due to which the physical state of any system can be defined.

Reactivity and Flammability cannot be considered among them.

Answer 2

The answer to the given problem are:
1. Density
2. Hardness
3. Boiling Point 
4. Melting Point


These are the list of physical properties except for two which are reactivity and flammability. These two should be excluded in the list of physical properties.