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Reversibility of chemical reactions – chemical equilibrium I'm sorry, but chemistry isn't my major at all, and I desperately need help with it. I have to hand it in tomorrow. I would really appreciate some help…
If you want to write down the reaction in a simplified way, could you write it like this? AL^+ + (OH)^- 3 + 3H + 3CL -> ALCL3 + H2O + H2O + H2O -> AL(OH)CL2 + HCL + H2O And when you use the medication for heartburn, do the compounds first dissociate to react…
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Moin,
Yes. Calcium is less noble than zinc (it has a significantly lower potential in the voltage series of metals). Therefore, calcium ATOME (Ca) give zinc cations (Zn)2+) voluntarily electrons, so that from the calcium atoms calcium cations (Ca2+) while the zinc cations become uncharged zinc ATOMS (Zn).
It is also said that the atoms of outer metals (here calcium) free the ions of more noble metals (here zinc) from their ionic state by releasing electrons to the ions of the more noble metal. As a result, the atoms of the less noble metal themselves become ions, while the ions of the more noble metal become atoms again.
Ca + Zn2+ → Zn + Ca2+
or
Ca + ZnO → CaO + Zn
So (voluntary) takes place…
The Calcium atoms are oxidized (they emit electrons).
The Zinc cations are reduced (they pick up electrons).
Calcium atoms they are Reducing agents (it is the agent for reducing others, it itself being oxidized).
The zinc cations they are Oxidation agents (the agent for the oxidation of others, it itself being reduced).
All right?
LG from the Waterkant