IGCSE Chemistry 2021 May June Paper 22 SOLVED (0620/22/M/J/21)

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JMXZ
(0620/22/M/J/21)
igcse chemistry 2021 may june paper 22

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Clarification on Q20 29:15 Exothermic reactions will always have a negative delta H. This is because they are giving out heat energy. And the reverse is true for endothermic. For endothermic, heat is absorbed so delta H is always positive. I didn’t notice this error, and sorry for the inconvenience!!

jmxz

Hello. In 29:15 the enthalpy change of reaction for exothermic is delta -. because more energy is released than absorbed.

annyadana

Sorry I'm a bit confused on question 17, can anyone explain it?

olwynblackston

speak louder anime kid, ur calculator sounds more confident than you.

namlorefn

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