Introduction: Anything that occupies space and has mass is called matter. Matter can be divided into two types. Pure substance: It consists single types of particles which are identical and same characteristics. Mixtures:...
The process in which gaseous state directly changes to solid without changes to liquid. Ans: Deposition. Evaporation is a _______phenomenon. Ans: Surface phenomenon. The process in which liquid changes...
1.On heating lime stone release of which glass? Ans. carbon dioxide 2. Plaster of Paris made from? Ans. Gypsum 3.What is the pH of a solution of ph zero? Ans. Acidic 4.setting of plaster of Paris...