Match the items in Column I with those in Column II layers.

	Column I		Column Il
(a)	Elements	(i)	Smoke
(b)	Compound	(ii)	Soap bubbles
(c)	Homogeneous mixture	(iii)	Carbon dioxide
(d)	Heterogeneous Mixture	(iv)	Milk
(e)	Foam	(v)	Potassium
(f)	Emulsion	(vi)	Bronze

Potassium is an example of an element. The chemical element potassium has the atomic number 19 and the letter K (which stands for kalium in Neo-Latin). Potassium is a silvery-white metal that may be easily and gently sliced with a knife.  

Carbon dioxide is an example of a compound. Carbon Dioxide is a prevalent chemical compound that is composed of a carbon atom and two oxygen atoms. 

Bronze is an example of a homogeneous mixture. A homogeneous mixture is one in which the components are blended together consistently. Examples include air, which is a homogeneous mixture of gases, and alloys such as brass, bronze, etc., which are solid solid solutions of metals. 

Smoke is an example of a heterogeneous mixture. 

Soap bubbles are an example of foam. 

Milk is an example of an emulsion.