Cu + MgCl2 --> no reaction
In order for a single replacement/displacement reaction to take place, the free metal must replace the bonded metal in the compound. However, according to the reactivity series of metals, copper does not replace magnesium, however magnesium would replace copper in a compound. Mg + CuCl2 --> Cu + MgCl2. Refer to the related link for a reactivity series of metals.
Mg + Cu2O = MgO + 2Cu
2 Mg + 2 CuCl --> 2mgcl2 + 2cu
CO2 is not an equation, so it cannot be balanced. It is a chemical formula.
The chemical equation is:2 Al +3 CuCl2 = 3 Cu + 2 AlCl3
Cu(I), cuprous, Cu+.
the chemical equation for zinc plus cupric sulfate equals zinc sulfate plus copper can be written in the form of reaction as follows .ZN +Cu SO 4 -> Zn SO 4 + Cu.they form a aqueous solutions.
copper (II) sulfate is CuSO4 ; Zinc sulfate is ZnSO4 Zn + CuSO4 --> ZnSO4 + Cu
Zn + CuSO4 --> ZnSO4 + Cu
CO2 is not an equation, so it cannot be balanced. It is a chemical formula.
The chemical equation is:2 Al +3 CuCl2 = 3 Cu + 2 AlCl3
It is a single displacement reaction. No balancing is needed in the resulting equation. Zn + CuBr2 ----> ZnBr2 + Cu
oxidation
Cu-------Cu2+ + 2 e-
mg + CuCl2 + MgCl2 + Cu Mg + Cu^+2 = Mg^+2 + Cu
PbCl2 + Cu
There is no equation because there is no reaction.
If the copper nitrate formed is copper (I) nitrate, the equation balances with one atom of each metal and one formula weight of each nitrate. If the copper nitrate formed is copper (II) nitrate, the balanced equation is: 2 AgNO3 + Cu -> 2 Ag + Cu(NO3)2.
CuS04 + 2Na -> Na2SO4 + Cu
double replacement