Question

A magnesium ribbon is burnt in oxygen to give a white compound x accompanied by emission of light. If the burning ribbon is now placed in an atmosphere of nitrogen , it continues and burns to form a compound y. I) write the chemical formula of x and y ii) write the balanced chemical equation when x is dissolved in water

Answer 1

x is magnesium oxide (MgO) and y is magnesium nitride(Mg3N2)
$2mg + o2 = 2mgo$
$3mg + n2 = mg3n2$

Answer 2

Answer:

2mg+ o2 --> 2MgO

(compound X)

MgO + N2 ----> Mg3N2 + o2

(compound Y)

balanced equation--

MgO + h2o ---> mg(oh)2