CH-1268
Exothermic and endothermic reactions
Chemistry · Secondary 4 · Hard · Exothermic and endothermic reactions
A student adds a small piece of sodium to water. The reaction is:
Which statement explains why the reaction gets hotter as it proceeds?
Which statement explains why the reaction gets hotter as it proceeds?
- It is exothermic, so heat is released to the surroundings, raising the temperature.
- It is exothermic, so heat is absorbed from the surroundings, lowering the temperature.
- It is endothermic, so heat is released to the surroundings, raising the temperature.
- It is endothermic, so heat is absorbed from the surroundings, raising the temperature.
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