QUESTION 3 If the reaction is endothermic, the sign of H will be O negative and

Question

QUESTION 3 If the reaction is endothermic, the sign of H will be O negative and the reaction requires added heat O negative and the reaction releases heat o positive and the reaction releases heat positive and the reaction requires added heat QUESTION 4 When pure hydrogen and oxygen change into H2o, the reaction releases heat. What does this tell you about the reaction? O the formation of pure hydrogen and oxygen trom H20 is spontaneous the reaction is endothermic the backward reaction would be exothermic o pure hydrogen and oxygen are higher energy chemicals than H20 is QVESTION 5

Explanation / Answer

3. Option D, since endothermic reactions absorbs heat and change in Enthalpy is positive

4. Option D, since both H2 and I2 are more reactive and higher in internal energy than H2O.

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