When magnesium ribbon is exposed to air, it reacts with oxygen in the air to form magnesium oxide. This oxide layer interferes with the burning of magnesium ribbon. Thus, the magnesium ribbon should be cleaned using sand paper before burning in air.
Copper reacts with moist carbon dioxide in air to form copper carbonate and as a result, copper vessel loses its shiny brown surface forming a green layer of copper carbonate....
A Mg2+ ion and Mg atom differ by two electrons.
103 moles of Mg2+ and Mg atoms would differ by
103 × 2 moles of electrons
Mass of 2 ×103 moles of electrons...
i. The reaction in which one reactant gets oxidised and the other reactant gets reduced is called redox reaction.
ii. When a magnesium ribbon burns in air with a dazzling flame...
When magnesium ribbon is burnt, dazzling white flame is observed and there is formation of white ash. Magnesium is said to be oxidised as it is combining with oxygen.
ii. The...
An ecosystem is defined as a dynamic system of biotic and abiotic components and there is a continuous flow of energy between the different components. Its two main components are:
(i)...
(i) 2Mg + O2→ 2MgO + Light
3Mg + N2→ Mg3N2
(a) X is MgO; Y is Mg3N2
(b) MgO + H2O→ Mg(OH)2
(ii) Grapes when attached to the plants are living and therefore,...
