Answer:
Sn + CuCl₂ → SnCl₂ + Cu
Explanation:
Molecular equation:
Tin + Cupric chloride → copper + stannous chloride.
Chemical reaction:
Sn + CuCl₂ → SnCl₂ + Cu
When tin react with Cupric chloride displacement reaction occur. The reaction is single displacement. Tin displace the copper and react with chlorine and form stannous chloride.
The given reaction equation is balanced because there are equal numbers of atoms of each elements on both side of reaction equation. So this equation followed the law of conservation of mas.
Single replacement:
It is the reaction in which one elements replace the other element in compound.
AB + C → AC + B
Salt and sugar are made of the same substance. But salt disolves in water faster and better than sugar.
Answer:
Free energy change of the reaction is +98.83 kJ/mol.
Explanation:
The dissociation reaction of mercury(I) aqueous solution is as follows.
The standard free energy of the reaction is as follows.
![=[(1\times \Delta G^{o}_{f(Hg_{2}^{2+})})+(2\times \Delta G^{o}_{f(Cl^{-})})-(1\times \Delta G^{o}_{f(Hg_{2}Cl_{2})})]](https://tex.z-dn.net/?f=%3D%5B%281%5Ctimes%20%5CDelta%20G%5E%7Bo%7D_%7Bf%28Hg_%7B2%7D%5E%7B2%2B%7D%29%7D%29%2B%282%5Ctimes%20%5CDelta%20G%5E%7Bo%7D_%7Bf%28Cl%5E%7B-%7D%29%7D%29-%281%5Ctimes%20%5CDelta%20G%5E%7Bo%7D_%7Bf%28Hg_%7B2%7DCl_%7B2%7D%29%7D%29%5D)
![=[(1\times 153.5+2\times -131.25)-(1\times -210.78)]kJ=+101.78kJ](https://tex.z-dn.net/?f=%3D%5B%281%5Ctimes%20153.5%2B2%5Ctimes%20-131.25%29-%281%5Ctimes%20-210.78%29%5DkJ%3D%2B101.78kJ)
![\Delta G=\Delta G^{o}+RT\,ln([Hg_{2}^{2+}][Cl^{-}]^{2})](https://tex.z-dn.net/?f=%5CDelta%20G%3D%5CDelta%20G%5E%7Bo%7D%2BRT%5C%2Cln%28%5BHg_%7B2%7D%5E%7B2%2B%7D%5D%5BCl%5E%7B-%7D%5D%5E%7B2%7D%29)
Therefore, Free energy change of the reaction is +98.83 kJ/mol.
Answer:
The answer ia B ( decomposition)
