Question

15. Identity the type of each of the following reactions.
Also write balanced chemical equation for each reaction.
1:A reaction in which the reaction mixture becomes warm
2:A reaction in which an insoluble substance is formed.
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Answer 1

Answer:

1. In an exothermic reaction, the reaction mixture becomes warm because heat is released. Common examples of exothermic reactionsare: photosynthesis, respiration,nuclear fission, combustion reaction,neutralization reaction, the reaction between water and strong acids, anhydrous salts etc.

2. A precipitation reaction refers to theformation of an insoluble salt when two solutions containing soluble salts are combined. The insoluble salt that falls out of solution is known as the precipitate, hence the reaction'sname. Precipitation reactions can help determine the presence of various ions in solution

Step-by-step explanation:

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