Neutralization reaction.
2HCl + Ca(OH)2 ==> CaCl2 + 2H2O
This is NOT an oxidation-reduction reaction.
NaOH+CaCO3
Zn alone is a reducing agent because it donates electrons during a reaction and H2SO4 alone is an oxidizing agent because it may donates atomic oxygen during the reaction but (Zn + H2SO4) mixture is a reducing agent because this mixture may produce atomic hydrogen during a reaction.
1,1,1
Ca(OH)2 + Na2CO3 = CaCO3 + 2 NaOH
2ag+2hcl=2agcl+h2
CuCl2
O2
The ferrous oxide is the oxdant.
NaOH+CaCO3
Zn alone is a reducing agent because it donates electrons during a reaction and H2SO4 alone is an oxidizing agent because it may donates atomic oxygen during the reaction but (Zn + H2SO4) mixture is a reducing agent because this mixture may produce atomic hydrogen during a reaction.
1,1,1
Ca(OH)2 + Na2CO3 = CaCO3 + 2 NaOH
water [H20]
Zn(s) + 2HCl(aq) ---> ZnCl2(aq) + H2(gas)
CaO+2H2CL2O
CaO+2H2CL2O
CuO + 2HCL - CuCl2 + H2O