(a) A group of students burnt a piece of Mg ribbon in air and its ash collected in a Petri dish. The ash was found to...

(a) A group of students burnt a piece of Mg ribbon in air and its ash collected in a Petri dish.
The ash was found to comprise of magnesium Oxide and Magnesium nitride
(i) Write an equation for the reaction leading to formation of the magnesium nitride
(ii) A little water was added to the products in the Petri dish. State and explain the observation made.
(iii) A piece of blue litmus paper was dipped into the solution formed in (b) above.
State the observation made.

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a) i) 3Mg_(s) + N_2(g)-------> Mg₃N_2(s)


ii) Gas with choking irritating smell.
Mg₃N₂ reacts with water to form ammonia gas.


iii)It remains blue. Ammonia gas is alkaline.

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maurice.mutuku answered the question on October 14, 2019 at 06:35

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