What is the state of matter for 2NH3, 2NaCl and 2KNO3+PBI2.

2NH3 - Gas Phase

2 NaCl - Solid Phase

2KNO3+PBI2 - Aqueous Phase

Explanation:

2NH3 is ammonia gas which is colorless and has a bad pungent smell.  

NaCl is salt. It has crystalline structure and can exhibit both aqueous or a liquid phase. Since there is no H2O molecule in the formula of NaCl, hence it is not aqueous. It is not liquid as well because liquid NaCl is represented as NaCl (l) while aqueous NaCl is represented as NaCl (aq).

The reaction 2KNO3+PBI2 will take place in aqueous phase and hence these two exists in aqueous phase

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).