When hydrogen burns is oxygen, water is formed and when water is electrolysed, then hydrogen and oxygen are produced. What type of reaction takes place :
(a) in the first case.
(b) in the second case ?

(a) When sodium is brunt in chlorine, sodium chloride is formed, and when molten sodium chloride is electrolysed, then sodium and chorine are formed. What type of reaction takes place: (i) in the first case ? (ii) in the second case ? (b) When hydrogen is prossed over heated copper oxide, copper and stem are formed. write a balanced chemical equation for this reaction. state which of the chemicals is oxidised and which is reduced ? (c) what would you observe when zinc is added to a solution of iron sulphate ? write the chemical equation of the reaction which takes place. why does this reaction occur?

When water is electrolysed , volume of hydrogen and oxygen are evolved in the ratio of

When hydrogen burns in oxygen, water is formed, when electricity is passed through water, hydrogen and oxygen are given out. Name the type of chemical changes involved in the two cases.

n water, hydrogen and oxygen are present in the ratio of

what type of reaction takes place when calcium oxide is reacted with water ?

In what ratio by mass, hydrogen and oxygen are produced by the electrolysis of water ?

In a water molecule, the hydrogen and oxygen atom stick together by:

When water is electrolysed, hydrogen and oxygen gas are produced. If 1.008 g of H_(2) is liberated at the cathode. What mass of O_(2) is formed at the anode?

When water is electrolysed, hydrogen and oxygen gas are produced. If 1.008 g of H_(2) is liberated at the cathode. What mass of O_(2) is formed at the anode?

What is produced when hydrogen burns