Y is a shiny metal that gives white dazzling light when oxidised in air and Z is a liquid halogen; the subscript of Z in the chemical formula of a compound between Y and Z is
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11th
Chemistry
Some Basic Concepts of Chemistry
Stoichiometry and Stoichiometric Calculations
A silvery - white metal X t...
CHEMISTRY
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 buns in air to form powder Y.
Explanation:
a) Metal X is Magnesium (Mg).
b) Powder Y is Magnesium oxide, (MgO).
c) The substance with which metal X combines to form powder Y is Oxygen (of air), O2
d) Substance Z is Magnesium hydroxide Mg(OH)2
. Used as an antacid to relieve indigestion.
e) 2Mg+O 2 →2MgO
powder
Answer:
yes this answer is correct