Adeel Abbas Written by Adeel Abbas This is a covalent bond in which the electron cloud overlap is directly between the nuclei of the atoms involved in the bonding. Characteristic of sigma bond A sigma bond will be formed using electrons in s orbitals, p orbitals or hybrid orbitals. A sigma bond will always be a single … Read more
Avogadro’s Law According to the Avogadro’s law equal volumes of all the gases at same temperature and pressure contain equal number of molecules. This definition of Avogadro’s law can be explained from the Avogadro’s hypothesis. This hypothesis says that all the ideal gases at standard temperature and pressure occupy a volume of 22.414 dm3. Let … Read more
Scientists have discovered antimicrobial food packaging materials that keep the food safe and healthy. This research was conducted at the Nanyang Technological University and Harvard T.H Chan School of Public Health. The newly discovered food packaging material is biodegradable and waterproof. This is made from a protein called Zein that is found in corn starch … Read more
Written by Adeel Abbas Lithium is the lightest of all metals and is found in Group 1 of the periodic table. It has the symbol Li and an atomic number of 3. It is a silver-white metal that is very reactive and flammable. Lithium is part of the alkali metal group and can be found … Read more
Written by Adeel Abbas Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. in periodic table chlorine is present as … Read more
What is boiling point? Written by Adeel Abbas Boiling point is defined as the temperature at which vapor pressure of a liquid becomes equal to the external pressure surrounding it. This means that when the external pressure is lower, boiling points are also lower and vice versa. Vapor pressure of a liquid depends on its … Read more
LEARNING OBJECTIVES In this article, the author has explained 7 Difference Between Molecule and compounds. The main difference between molecules and compounds is the difference in their composition. A molecules consist of two or more bonded atoms, while compounds are formed by the combination of different elements. In chemistry, a molecule is a substance consisting of two … Read more
Written by Adeel Abbas An artificial sweetener, or sweetening agent, is a food additive that provides a sweet taste to foods and drinks without the accompanying calories of natural sugar. Because they are many times sweeter than regular sugar, artificial sweeteners can be used in smaller quantities to provide the same level of sweetness. This makes … Read more
Written by Adeel Abbas What are fossil fuels? Fossil fuels can be defined as organic matter, obtained from decaying organisms under high temperature and pressure for a long period of time, and finally their decay after an extensive time span. Fossil Fuels are the natural resources that take millions of years to form and cannot … Read more
written by Adeel Abbas The key difference between physical and chemical changes is the difference in the rearrangement of particles. In a physical change, there is no rearrangement of particles, but in a chemical change, particles are rearranged, resulting in the formation of new products. Physical and chemical change are both forms of change that are … Read more