Author: StopLearn Team 2

There are six elements in Group VIIA, the next-to-last column of the periodic table. As expected, these elements have certain […]

Oxygen is the most abundant element on earth. It is found almost in everything in nature and also in free […]

Hydrogen comes from Greek meaning “water producer” (“hydro” =water and “gennao”=to make). First isolated and identified as an element by Cavendish […]

Reversible reactions A reversible reaction is one which can be made to go in either direction depending on the conditions. […]

https://www.youtube.com/embed/eJXL0IrbtqEEnergy is conserved in chemical reactions. One way of stating the ‘law of Conservation of Energy’ is to say the […]

Chemical reaction rate refers to one or more of the following: The rate of disappearance of one of the reactants. The […]

Since it is not possible to calculate the weight of particles individually, a collection of such particles called mole is […]

Molar volume is the volume occupied by one mole of any gas at a definite pressure and temperature. It is […]

Mole concept is arguably the broadest topic in chemistry, as it cuts across every other branch of chemistry, as far […]