What are measurable properties of gases?

What are colligative properties?

What are the similar properties of Li and Mg.

What are the properties of calcium oxide?

What are real gases ?

What is measurement ?

What are the properties of a couple acting on a body ?

What are the properties of electromagnetic radiations?

What are the similar properties in Beryllium and Aluminium?

What is an extensive property of a system? Give one example.

What is extensive property of a system? Pick out the extensive property from density,surface tension,pressure and heat capacity.