Use HTML entities to insert Greek symbols Want to insert that fancy Greek symbol into your post just once? Like π-orbitals or α-carbon. Then you needn't use MathJax for that! The SE Markdown supports HTML entities - a character sequence of the form &[code]; - which can be used to insert all sor...

A compound is formed by elements A and B. This crystallises in the cubic structure where the A atoms are at the corner of the cube and B atoms are at the body centres. The simplest formula formula for the compound is

Please bear with me—-I have a pretty meager background in chemistry but am trying to learn some! My question is about ion reactivity—-specifically of the reactivity of $\ce{F-}$. I often hear that the main reason the “weak” acid $\ce{HF}$ is so dangerous is because of the fluoride ion rather t...

Conductance and conductivity are distinct, although related, magnitudes. Conductance, $G$, is a measure of the total electric current, $I$, that can pass through a conducting element (such as a wire, a space through which a charged beam flows, or an electrolytic solution) when a given voltage, $...

Heat a test tube of water near the top with a weighted ice cube near bottom. Even when the water at the top starts boiling, the ice cube doesn't meslts. Why?

pta ni yr ncert mein se padh liyo , pta ni kya bkwaas hai