Nitric acid is colorless liquid, It turns to red color when adding a few drops of litmus solution, Strong oxidizing agent – especially concentrated acid – and this is illustrated from the action of...
Nitrogen is considered as the most famous element in 5A group, Nitrogen gas is collected during its preparation by downward displacement of water because nitrogen gas is lighter than the water and sparingly soluble...
Group 5A (group 15) consists of five elements which are nitrogen, phosphorus, arsenic, antimony & bismuth, Elements of this group are not abundant in nature, except nitrogen which represents about 80 % of atmospheric...
The biological processes that occur in the bodies of living organisms are carried out through the chemical reactions that leave some waste products, The living organism must get rid of these waste products as...
