1. a student performs a reaction in a beaker by reaction silver nitrate with one long copper wire. the student’s thermometer changes from 27°c to 35°c. based on this, is this reaction endothermic, exothermic, or neither? explain your reasoning.
2. list three ways that the student could speed up the reaction in question 1

1.The reaction is exothermic .

2.

Decrease the temperature or remove heatAdd a catalystIncrease the surface area of reactants.

Explanation:

1.

As we observed , the reading in the thermometer changes from 27°C to 35°C.

Which means, heat is released when the reaction(displacement reaction) proceeds in the forward direction. - as in to raise the temperature .

Thus it is an exothermic reaction.

2.

According to Le-Chatelier's principle ,

In a reaction , as we increase the temperature or heat , the reaction moves in the direction that consumes or uses the heat.

Thus, an exothermic reaction moves backward when temperature is increased and moves forward as temperature is decreased.By adding a catalyst , the reaction happens faster because of the efficiency of catalyst.By increasing the surface area of the molecules, the collision between the molecules happen faster and effectively thus increasing the speed of the reaction.

The answer is b i think

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