In the treatment of water for municipal supply, chlorine is used to
The combustion of candle under limited supply of air forms
A major effect of oil pollution in coastal water is
The substance that reacts with sodium to form alkali and changes white anhydrous copper(II) tetraoxosulphate (VI) to blue is
\(^{14}_7\)N + X → \(^{14}_6\)C + \(^1_1\)P
In the reaction above, X is
