(a) Magnesium, Mg because magnesium undergoes oxidation in the presence of oxygen.
(b) Magnesium oxide, MgO
(c) Oxygen (of air), O2
(d) Magnesium hydroxide, Mg(OH)2; Used as an antacid to relieve indigestion
(e) 2Mg + O2→ 2MgO
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. (a) What could metal X be? (b) What is powder Y? (c) With which substance metal X combines to form powder Y? (d) What is substance Z? Name one domestic use of substance Z. (e) Write a balanced chemical equation of the reaction which takes place when metal X burns in air to form powder Y.
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. (a) What could metal X be? (b) What is powder Y? (c) With which substance metal X combines to form powder Y? (d) What is substance Z? Name one domestic use of substance Z. (e) Write a balanced chemical equation of the reaction which takes place when metal X burns in air to form powder Y.