Mg+O_(2)rarr MgO

If (3)/(2) mol of O_(2) combine with Mg to form MgO . Find mass of Mg that has combined : 2Mg+O_(2)rarr2MgO

Match the following and select correct option. {:("a) "2Mg+O_(2)rarr2MgO,"i) Reduction"),("b) "CaCO_(3)rarr CaO+CO_(2),"ii) Oxidation"),("c) "CuO+H_(2)rarr Cu+H_(2)O,"iii) Decomposition"):}

24 gm pure sample of magnesium is burnt in air to form magnesium oxide and magnesium nitride. When products are treated with excess of H_(2)O , 3.4 gm of gaseous NH_(3) is generated according to given reactions. Mg+O_(2) rarr MgO Mg+N_(2)rarr Mg_(3)N_(2) Mg_(3)N_(2)+ 6H_(2)O rarr 2Mg(OH)_(2)+2NH_(3) Calculate the amount of magnesium oxide (in gm) in products.

24 gm pure sample of magnesium is burnt in air to form magnesium oxide and magnesium nitride. When products are treated with excess of H_(2)O , 3.4 gm of gaseous NH_(3) is generated according to given reactions. Mg+O_(2) rarr MgO Mg+N_(2)rarr Mg_(3)N_(2) Mg_(3)N_(2)+ 6H_(2)O rarr 2Mg(OH)_(2)+2NH_(3) Calculate the amount of Mg(OH)_(2) (in gm) produced in above reaction.

Delta G^circ' Vs. T plot in the Ellingham's diagram slopes downward for the reaction : Mg+2 O_2 rarr MgO , 2 Ag+1 / 2 O_2 rarr Ag_2 O , C+1 / 2 O_2 rarr CO , CO+1 / 2 O_2 rarr CO_2

Heats of formation of SiO_(2) and MgO are -48.24 and -34.7 kJ respectively. The heat of the reaction : 2Mg+SiO_(2) rarr 2MgO+Si is

The value of heat of formation of SiO_(2) and MgO are 48.24 and 34.7 kJ respectively. The heat of reaction : 2Mg + SiO_(2) rarr 2MgO + Si is :

24 gm of silicon dioxide were heated with 28.8 gm of magnesium. When the obtained product was treated with hydrochloric acid 6.72 litres of hydrogen measured at S.T.P. were collected. Determine the mass of isolated silicon. The reactions are, 2Mg +SiO_(2) rarr 2MgO+Si, " "2Mg+Si rarr Mg_(2)Si Si+HCl rarr no reaction , " "MgO+2HCl rarr MgCl_(2)+H_(2)O Mg_(2)Si+4HCl rarr 2 MgCl_(2)+SiH_(4), " " Mg_+2HCl rarr MgCl_(2)+H_(2) (Atomic wt. : Si = 28, Mg = 24)