Bottom line Your dissolution reaction<span> is endothermic, but because </span>dissolution reactions<span> lead to states of higher entropy, your particular </span>reaction is spontaneous<span> (it occurs) at your specific temperature nonetheless</span><span />
Answer:
The answer to your question is Na₂S, if you need to choices the other one is BaS
Explanation:
As a general rule, all the compounds that have sulfur, are insoluble in water, but the are some exceptions.
-Molecules with ammonia
-If the molecule has alkali metals is soluble
-If the molecule has Ca⁺², Sr⁺² and Ba⁺² is soluble in water.
From the compounds given, following the rules, the compound that is soluble in is Na₂S and perhaps BaS.
It is known as its molar mass.
Answer:
b Van der Waals - Hydrogen Bond - Covalent Bond - Ionic Bond
Explanation:
Generally interatomic bonds are stronger compared to intermolecular forces.
Van der waals and hydrogen bonds are intermolecular bonds that forms between molecules or even compound.
Covalent and Ionic bonds are interatomic forces.
Van der waals forces are the weakest forces of attraction and hydrogen bonds are very strong forces.
Ionic forces are the strongest interatomic forces.