[unkwown]

Hi i have an equation

 CaCO3 + 2HCl -> CaCl2 + CO2 + H2O

how would this look ionically? I dont know which ones are the spectator ions. I looked in textbox and on internet but i cant quite get it. I came up with

Ca(2+)CO3(2-) -> Ca (2+)Cl2 (-) + H2O

i think that is wrong

thanks for help

[Albert]

How soluble is calcium chloride? 

http://en.wikipedia.org/wiki/Spectator_ion

[unkwown]

im still not sure. ive got my equation to

O3(2-) + 2H(+)Cl(-) -> Cl2 + O2 + H2O

but this cant be right

Can you give me the equation and tell me how you did it

thanks

[Albert]

First of all, have you understood which are the spectator ions?

Ca(2+)CO3(2-) -> Ca (2+)Cl2 (-)

This is correct. For what concerns the rest, remeber that H₂CO₃-> H₂O + CO₂.

I can't give you the answer because of the rules of the website: we help people this way here.

[unkwown]

i know what a spectator ion is and i understand http://www.wpbschoolhouse.btinternet.co.uk/page01/ElCpdMix/EleCmdMix.htm#higher

EDIT: but can somebody please take me through this equation. I cant work it out

[unkwown]

H2CO3-> H2O + CO2.

hmm

i can understand the 3 oxygens are split and the 1 combines with 2 hydrogens to make water, but how would the equation look

thanks

[unkwown]

is this the ionic equation:

O3(2-) + 2H(+) -> CO2 + H2O

[unkwown]

nope wait...

i think its

C(4+)O3(2-) + 2H(+) -> CO2 + H2O

both have a charge of 0

can someone confirm that my ionic equation is right

Thankyou
 

EDIT: or is it
2H(+) - > H2O

[Borek]

1. CaCO₃ is insoluble (well, it is weakly soluble, but you may assume it is insoluble) - thus it goes as CaCO₃ into the equation.

2. Your original equation contains only two substances that will be completely dissociated and should be written as ions - which two?

[unkwown]

calcuim and chlorine? Am i right? So my equation: C(4+)O3(2-) + 2H(+) -> CO2 + H2O is right or wrong?

[Borek]

calcuim and chlorine? Am i right? So my equation: C(4+)O3(2-) + 2H(+) -> CO2 + H2O is right or wrong?

Equation is wrong.

Calcium and chlorine are elements, I have asked about substances (compounds) that dissociate.

[unkwown]

im lost. Can't you just give me the equation and take me through how you got it?

[Borek]

CaCO₃ goes into the equation as solid.

HCl is strong acid, dissociated 100% - what ions are created?

CaCl₂ is a soluble salt - dissociated as well - what ions are created?

[unkwown]

Your original equation contains only two substances that will be completely dissociated and should be written as ions - which two?

The only substance i can find that is disacciated is CalcuimChloride. Is CarboneDioxide the other one?? Meaning my final equation is

2H(+) - > H2O

what am i doing wrong?

[unkwown]

CaCO3 goes into the equation as solid.

HCl is strong acid, dissociated 100% % - what ions are created
CaCl2 is a soluble salt - dissociated as well - what ions are created?
 

Hydrogen Ions react  with the O(-) ions. Hydrogen ions make somthing acidic and O(-) ions make somthing a base. Are the ions created H(+) Cl(-) and Ca(2+) Cl(-)