CH-1239
Exothermic and endothermic reactions
Chemistry · Secondary 4 · Medium · Exothermic and endothermic reactions
A student dissolves 5.0 g of calcium chloride in 100 g of water. The temperature of the water increases from 25.0 °C to 32.0 °C. Which statement about this process is correct?
- The process is exothermic because heat is released to the water.
- The process is endothermic because heat is released to the water.
- The process is exothermic because heat is absorbed from the water.
- The process is endothermic because the solution becomes warmer.
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