Explain why?
la Digestion of food is a decomposition reaction.
(b) All decomposition reactions are endothermic reactions.
(c) A popping sound is produced when a burning candle is brought near mouth of a test tube u
electrolysis of water
[3 MARKS/CBSE 10TH BOARD: 2015]
Answers
a digestion of food is a decomposition reaction because in the process of digestion the food break down into simpler suntances
theatres release the person runs and muscles worked
yes all the composition we are endothermic reaction because in decomposition reactions of the one compound are broken down into two or more simpler substances so heat is required to break down the bond of the substances
Answer:
(a) In the process of digestion of food, energy is given in the form of enzymes (bio catalysts) to enhance the reaction and breakdown of food particles. Hence, digestion is a decomposition reaction.
(b) In decomposition reaction energy is given in the form of heat, light, or electricity for the breakdown hence decomposition reactions are always endothermic reactions.
(c) When water is electrolyzed, hydrogen (H2) gas is released along with oxygen (O2) gas. When a burning candle is brought near the hydrogen gas, it produces a popping sound.