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CBSE Class 10 Answered

What happens in the reactants during exothermic reactions that they start giving heat?
Asked by Akshai R K | 27 Apr, 2013, 08:50: PM
answered-by-expert Expert Answer
Exothermic reactions decrease their enthalpy by releasing heat. They will get warm, and may even burn or explode if they release enough heat.
Answered by | 28 Apr, 2013, 09:50: AM

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CBSE 10 - Chemistry
A chemical reaction in which exchange of ions occurs between the reactants, is known as: (A) Endothermic Reaction (B) Exothermic Reaction (C) Double Displacement Reaction (D) Displacement Reaction
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CBSE 10 - Chemistry
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CBSE 10 - Chemistry
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CBSE 10 - Chemistry
On heating blue coloured powder of Copper (I) Nitrate in a boiling tube, Copper Oxide (black), Oxygen gas and a brown gas X is formed (a) Write a balanced chemical equation of the reaction. (b) Identify the brown gas X evolved. (c) Identify the type of reaction. (d) What could be the pH range of the aqueous solution of the gas X ?
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CBSE 10 - Chemistry
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CBSE 10 - Chemistry
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