Question

A silvery-white metal x taken in the form of ribbon, when ignited, burns in air with a dazzling white flame to form a white powder y. When water is added to powder y, it dissolves partially to form another substance z.

Answer 1

Answer:the white silvery ribbon is magnesium ribbon

Explanation:when Mg is burnt in the presence of air

it gives an equation that is

Mg+O2----- MgO

CASE:2

WHEN THE WATER IS ADDED TO MAGNESIUM OXIDE

it will partially dissolve in water so the reaction comes out to be

MgO+H2O--------Mg(OH)2

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