If you mean gas that would deepened on the chemicals involved. For example if you mix, let's say vinegar and sodium bicarbonate you get carbon dioxide but if you mix ammonium nitrate solution and sodium bicarbonate you will get ammonia gas.
I assume you mean chemical "change" and the answer is no, it is a physical change that takes place.
Yes.
a chemical change take a place
The volume is changed.
Yes, it turns to a solid and denaturation takes place.
The Law of Conservation of MASS, ENERGY, and CHARGE
Burning is a chemical process: the nature of the initial material is changed.
When a physical change takes place, a certain element or chemical will change its shape and in many cases, the volume too. Water takes the shape of the mold casing once it freezes.
The melting of the wax is a physical change. The burning the of wick is the chemical change
a compound
two
Chemical (Apex)