Question

What is the volume of water that should be added to 150 ml of N/2 oxalic acid to prepare a solution N/10 oxalic acid?

Answer 1

During reduction process metal ions gain electrons from donors.
For example, in the equation below Cu from its substance undergoes reduction process by gaining electrons (from +2 charge to a neutral atom).
+2 0
CuO + Mg = Cu + MgO