Question

7. An element 'X'burns in the presence of atmospheric gas with a brilliant white
light. After this a new substance 'Y' is formed. When this 'Y' substance is
dissolved in water it forms a 'Z' substance. Identify the 'X,'Y','Z' and give
corresponding reactions,​

Answer 1

Answer:X is magnesium

Y is magnesium oxide

Z is magnesium hydroxide

Explanation:2mg +O2=2mgo

Mgo+h2O=mg(oh)2+h2