It's important to recognise which elements are written with a subscript 2 and which are not. Take care to use the correct form in chemical equations involving these elements.

For example, when heated, green copper(II) carbonate decomposes into black copper(II) oxide and colourless carbon dioxide gas. Nitrogen and hydrogen react together to form ammonia. Give the word ...

Liouville's formula for certain class of linear operator equations of order n is derived. The result is applied to solving a linear second order operator equation. A number of examples which ...

In the paper, the authors find series expansions and identities for positive integer powers of inverse (hyperbolic) sine and tangent, for composite of incomplete gamma function with inverse hyperbolic ...

The Joint Entrance Examination Main February 2021 (JEE Main February 2021) will be held between February 23 and February 26 at various JEE Main exam centres in online mode. While the JEE Main ...