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CBSE Class 10 Answered

Why is respiration considered an exothermic reaction?
Asked by Jayesh Rawal | 27 Apr, 2012, 07:48: PM
answered-by-expert Expert Answer
respiration is an exothermic process because heat is released when glucose breaks into water and carbondioxide.
 
Some time breathe out and put your hand in front of ur mouth u feel the warm air coming out
Answered by | 29 Apr, 2012, 01:18: 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
BaCl2 +NaSO4 gives NaCl+BaSO4 is a neutalisation reaction?
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CBSE 10 - Chemistry
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CBSE 10 - Chemistry
1) A single displacement reaction is represented below. PQ + R ----> PR + Q Which of the following is true about the reactants and products? Refer image for the TABLE (a) A (b) B  (c) C (d) D
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CBSE 10 - Chemistry
what is chemical formula
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CBSE 10 - Chemistry
write the chemical equation for reaction that takes place when lead nitrate and potassium iodine solutions are mixed
Asked by dikshantnaik1008 | 21 Jul, 2023, 11:47: AM
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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
how we get the result of NH3+ HCL =NH4CL
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CBSE 10 - Chemistry
an iron metal compound 'Y', after decomposition changes into a solid brown substance and evolve a gas having characteristic odour of burning sulphur. Write the chemical reaction associated with this observation.
Asked by nehashekh291 | 03 Jan, 2023, 03:11: PM
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