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प्रश्न
Balance the following simple equation:
Al + O2 → Al2O3
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उत्तर
4Al + 3O2 → 2Al2O3
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संबंधित प्रश्न
State one characteristic of the chemical reaction which takes place when dilute sulphuric acid is added to barium chloride solution.
The removal of oxygen from a substance is called:
(a) oxidation
(b) corrosion
(c) reduction
(d) rancidity
Write word equation for the following skeletal equation:
\[\ce{Na + O2 -> Na2O}\]
Balance the following equation. Also name the product formed.
`"H"_2 +"CI"_2 → "HCI"`
Write your observation and name the product when An aqueous solution of barium chloride is added to dilute sulphuric acid.
Dry raisins were soaked in water for 2 hours, to determine the percentage of water absorbed by raisins. Before final weighing of swollen raisins, the extra water left on the surface of soaked raisins was removed by:
Complete the following blank in the equation as indicated.
\[\ce{CaH2_{(s)} + 2H2O_{( aq)}-> Ca(OH)2_{(s)} + 2H2_{(g)}}\]
Moles: 1 mole + ______ `→` ______ + ______
Answer the following question:
How do acids and bases react with each other? What is the name of the process? What product is obtained from these reactions?
Name the following:
Two non-metal which react explosively when brought in close contact.
Write a balanced equation for the following word equation:
Potassium bicarbonate → Potassium carbonate + Water + Carbon dioxide
