When 3.0 g of carbon is burnt in 8.00 g oxygen, 11.00 g of carbon dioxide is produced.

Answer: The balanced reaction of combustion of carbon can be written as:       C +  O2 ----------------> CO2      1       1                          1  (i) As per the balanced equation, 1 mole of carbon burns in 1 mole...

When ethyne is burnt in air, it gives a sooty flame. This is due to incomplete combustion caused by limited supply of air. However, if ethyne is burnt with oxygen,...

(c) ozone and oxygen

The percentage of gases like oxygen, nitrogen and carbon dioxide remain almost the same in the atmosphere because cycling of these gases maintains consistency.

(a) 32 g of oxygen gas = 1 mole  Then, 12g of oxygen gas = 12/32 mole = 0.375 mole  (b) 18g of water = 1 mole  Then, 20 g of water =...

The law of conservation of mass states that mass can neither be created nor destroyed or mass of reactants is always equal to that of products.     C        + ...

The calorific value of fuel is the amount of heat produced by the complete combustion of 1 kg of fuel.  Now,  Heat produced by 4.5 kg of fuel = 180000 kJ Therefore,...

(D) Helium or nitrogen To prevent rancidification of foods containing fats and oils, the packed food is surrounded by unreactive gas (like helium, nitrogen, etc.). The inert atmosphere thus created prevents...

(C) carbon dioxide only

(i) Nitrogen