Question 13 Marks
What do you understand by the following terms ?
Answer
View full question & answer→(a) Physical change : A change in matter which does not alter the chemical properties of the matter. For example, if we carve a piece of wood into a baseball bat, it will still burn in a fire and float on water.
(b) Chemical change :– A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed.
(c) Chemical reaction - A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. Substances are either chemical elements or compounds.
(b) Chemical change :– A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed.
(c) Chemical reaction - A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. Substances are either chemical elements or compounds.