Chemistry - 9 Chapter - 10
Chemical Energetics
Test - 5

1. What are spectator ions?


2. Spectator ions are ions that remain present in a solution and play very important role in reaction.


3. Heat is ______evolved during neutralization reactions.



4. Whenever a strong acid reacts with a strong base to produce one mole of liquid water, after neutralization, 57.32KJ heat is always evolved. This is called heat of neutralization.


5. How much heat is evolved when a strong acid reacts with a strong base to produce one mole of liquid water?




6. Heat of neutralization can also be defined as heat evolved when sufficient amounts of strong acid and strong base react to produce one mole of liquid water.


7. Heat is ____ or ____ during any physical or a chemical change.


8. If heat is evolved during a chemical reaction, it is called _______ reaction. ( Feed complete answer in small letters )


9. A neutralization process always involves the same _______ reaction.


10. When sufficient volumes of an acid and a base react to produce one mole of water, the heat evolved is called the heat of ______.


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