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प्रश्न
Name a nitrate which produces oxygen as the only gas.
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उत्तर
Sodium nitrate
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संबंधित प्रश्न
State the effect of an endothermic reaction.
Identify the endothermic and exothermic reaction.
\[\ce{CaCO_{3(s)}->[\Delta] CaO_{(s)} + CO2}\]
Why energy is involved in a chemical change?
What do you observe? When
Lead nitrate is heated.
Define exothermic and endothermic changes. Give two example in each case.
State which type of chemical reaction proceeds with the absorption of heat energy.
Give a balanced equation for the following type of reaction:
A catalytic, reversible, exothermic reaction.
True or False. If false, give the correct answer.
Tarnishing of silver is an example of endothermic change.
Complete the following table:
| Chemical Reactions | Name reaction type |
| \[\ce{C(s) + O2(g) -> CO2(g)}\] | (a) ________ |
| \[\ce{Zn(s) + CuSO4(aq) ->}\] (b) _________ | Displacement reaction |
| \[\ce{2Cu(s) + O2(g) ->[heat] 2CuO(s)}\] | (c) _________ |
| \[\ce{C(s) + 2H2(g) -> CH4(g)}\] | (d) _________ |
| \[\ce{CaO(s) + H2O(l) -> Ca(OH)2(aq) + heat}\] | (e) _________ |
| \[\ce{CaCO3(s) + Heat ->}\] (f) _________ | Endothermic Reaction |
Give a scientific reason.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
