CaCO3 + 2HCL = CO2 + CaCl2 + H2O
I think it is is a redox reaction because the CO3 becomes a CO2 .... is this correct ?
2007-10-18 03:11:50 · 6 answers · asked by immortal 2 in Science & Mathematics ➔ Chemistry
No, it's not redox - all the valencies (oxidation states) are still the same
The carbonate ion has a 2- charge to compensate for having the extra oxygen.
2007-10-18 03:15:44 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
It isn't a redox b/c none of the atoms change their oxidation states.
This is an acid base reaction, but since it involves a carbonate base, it is a little unusual in the sense that the base gets decomposed.
2007-10-18 04:27:46 · answer #2 · answered by anotherhumanmale 5 · 0⤊ 0⤋
the classic definition of a redox reaction says that a metal will lose or gain electrons from its outer electron shell.
my guess is no because Calcium is usually relatively stable... so in the reaction you wrote the Calcium will change partners but remain at the same bonding level (valence).
it has two electrons in its outer shell that are available for reactions. swapping from carbonate to chloride doesn't involve gaining or losing electrons.
2007-10-18 03:35:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
No - there are no charge changes. The sulfur in SO2 = +4 The sulfur in H2SO3 = +4 H is +1 in H20 and H2SO3, O is -2 is H20 ahd H2SO3 This is a synthesis reaction
2016-05-23 08:14:26 · answer #4 · answered by amada 3 · 0⤊ 0⤋
not actually
if there is a redox reaction , there is change of oxidation number and charge of ions
in this reaction , there is no change of charge and oxidation number....so , redox reaction does not take place..
2007-10-18 04:10:44 · answer #5 · answered by oyyo 2 · 0⤊ 0⤋
No. The C does not change oxidation state.
2007-10-18 03:18:15 · answer #6 · answered by papastolte 6 · 0⤊ 0⤋