Rectangular coordinate system | Two-dimensional rectangular Two or three lines drawn perpendicular to each other are called coordinate axes. The system of coordinate axes is called a rectangular coordinate system or Cartesian coordinate system. In rectangular coordinates, the horizontal line is called X axis. In a rectangular coordinate system the vertical line is called the … Read more
Solid | Types of solid | Classification of solid Solid is a state of matter which is a rigid, hard, three dimensional structure and has definite volume and definite shape and volume. Types of solid There are two types of solid. Crystalline solid The solid which has definite shape and atoms, ions or molecules are … Read more
Preparation of pure Benzoic acid Apparatus. Beaker, tripod stand, Bunsen burner, matchbox, stirrer, filter paper and funnel. Chemicals 250-centimeter cube, water and benzoic acid. Procedure. There are five steps to prepare pure benzoic acid. 1. I took 250 centimeter cube water in a 500 centimeter cube beaker. 2. I boiled the water and added the … Read more
Boiling point | Applications of boiling point The temperature at which the vapor pressure of a liquid is equal to the vapor pressure of the atmosphere or some other external pressure is called boiling point. Example. Boiling point of water is 100 centigrade at 760 Torr pressure. Molar heat of vaporization. The amount of heat … Read more
Similarities and dissimilarities of isotopes || Explain relative abundance of isotopes Similarities of isotopes. Isotopes Have the same number of protons. Isotopes have the same number of electrons. In periodic table isotopes have the same position. Isotopes have the same chemical properties. Dissimilarities of isotopes. Isotopes have different numbers of neutrons. Isotopes have different atomic … Read more