Chemical reactions occur because bonds between atoms are either broken or formed. When atoms or molecules come together, they form new substances called compounds. These compounds can then undergo ...

Nitrogen is obtained from the air. Air is 78 per cent nitrogen and nearly all the rest is oxygen. When hydrogen is burned in air, the oxygen combines with the hydrogen leaving nitrogen behind. In ...

With its focus on synthetic reactions that are highly specific and reliable, ‘click’ chemistry has become a valuable tool for many scientific research areas and applications. Combining the modular, ...

When writing chemical equations for reversible reactions, the usual one-way arrow is not used. Instead, two arrows are used, each with just half an arrowhead (⇌). The top one points right, and the ...