If heat transfers from the system (solute) to the surroundings (solvent), then AH is
negative (AH < 0), and the reaction is defined as * (T)
A)endothermic
B)exothermic
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Ответ:
B) exothermic.
Explanation:
Hello!
In this case, we need to keep in mind that exothermic reactions release heat, so they increase the temperature as the final energy is less than the initial energy; in contrast, endothermic reactions absorb heat, so they decrease the temperature as the final energy is greater than the initial energy.
In such a way, when a dissolution process shows off a negative enthalpy of dissolution, we infer it is an exothermic process due to the aforementioned; therefore, the answer is:
B) exothermic .
Best regards!
Ответ:
Alkaline Earth Metals are the 2nd Group of Metals on the Periodic Table.
Explanation:
Characteristics:
- Shiny
- Reactive
- Low melting and boiling points
- Low density
- 2 valence electrons
Alkaline Earth Metals cannot be found alone in nature since they are highly reactable (If you've ever thrown barium into a lake, it would cause a massive explosion).