Shadow Power 24

How fast or how intensely an element reacts with another element or compound expresses its activity.

100% pure CH3COOH is called glacial acetic acid.

Any nutritious substance that people or animals eat or drink or that plants absorb in order to maintain life and growth.

A pair of electrons occupying an orbital in an atom or molecule and not directly involved in bonding.

The rate of reaction is the speed at which reactants are converted into products.

The metals, which are used to produce coins from the ancient age and were used as means of trade and commerce are called coin metals.

Methanal or the saturated aqueous solutions of formaldehyde (40% by volume, 37% by weight) is known as 100% formalin which is mainly used to preserve dead animals. 

The modern periodic law is as follows- In the periodic table, the physical and chemical properties of the elements repeat periodically with their atomic number depending upon the electronic arrangement of the elements.