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प्रश्न
Balance the following equation:
NO2 +H2O → HNO2 + HNO3
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उत्तर
2NO2 + H2O → HNO2 + HNO3
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संबंधित प्रश्न
The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, which is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.
(a) What is metal M?
(b) What is solution S? Is it acidic or alkaline?
(c) What is gas G?
(d) Write a balanced chemical equation for the reaction which takes place when metal M reacts with water.
(e) Is this reaction exothermic or endothermic?
Balance the following chemical equation :
Na2CO3 + HCl → NaCI + H2O + CO2
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MnO2 + HCl → MnCl2 + H2O + Cl2
Balance the following equation:
Zn + HNO3 `→` Zn(NO3)2 + H2O + NO2
Write the balanced chemical equation of the following reaction.
zinc sulphide + oxygen → zinc oxide + sulphur dioxide
A chemical reaction is generally accompanied by certain external indications or characteristics. These include – change of – (a) colour (b) state (c) smell (d) evolution of gas (e) formation of precipitate (f) evolution or absorption of heat. With reference to change of colour – state the change in colour seen when the following are heated – copper carbonate.
Give word equation for the following chemical reaction and give the names of the product formed.
Zn + S → ZnS
Balance the following simple equation:
NO + O2 → NO2
