Question

6. a) Which of the following reactions is/ are an endothermic reaction(s) where
decomposition also happens?
Respiration
Heating of lead nitrate
Decomposition of organic matter
Electrolysis of acidified water​

Answer 1

Answer:

answer

Explanation:

1. D.An oxidation reaction which is exothermic. Hint:Respiration is a process in which cells of an organism obtain energy by combining oxygen and glucose. ... The chemical equation is C6H12O6+6O2→6CO2+6H2O .
2. When lead nitrate is heated, it breaks down into lead monoxide, nitrogen dioxide, and oxygen. 2Pb(NO3)2→2PbO+4NO2+O2

• This type of chemical reactions are called thermal decomposition reaction
• 3 Organic compounds decompose in air (oxygen) to give mostly carbon dioxide and water, both and particularly the latter being highly exothermic. ... There is one kind of decomposition reaction which is always endothermic; the decomposition of gaseous diatomic or polyatomic molecules into gaseous atoms.
• 4. Electrolysis of water to form oxygen and hydrogen is an endothermic reaction because electrical energy is absorbed during this reaction

Answer 2

Answer:

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