How do you get the net ionic equation for: CO 2 + H 2 O + NaCl (also, if there i

Question

How do you get the net ionic equation for:

CO2 + H2O + NaCl

(also, if there is no reaction please explain how you are able to determine that.)

2 The following substances are either reactants or products, and are written in the molecular form. Write the corresponding net ionic equations for the aqueous solution. in the correct direction (products on the right). If no clear direction can be predicted. please indicate. Hint: "switch partners" of the given substances and examine all four substances. Which of these will be a gas, an insoluble solid, or a weak acid? Once you identify that, you have identified the product. Then work backwards to write the component ions that yield that substance. Example: Pbs+NaNOs. The ions involved are Pb*, S2, Nat, and NO,. We know frorm the solubility trend chart that all sulfides except Na, K' and NH4 are insoluble. so that leaves PbS as a product. If we switch the ion partners we get the starting substances Pb(NO3); and Na2S. The net ionic equation is Ph" + S2- PbS

Explanation / Answer

net ionic equations must include only reacting species

from

CO2 + H2O + NaCl

there is no actual reaction, just ionization

CO2(g) --> CO2(aq)

CO2(aq) + H2O(l) --> H2CO3(aq)

note that in real life, this keeps going

H2CO3(aq) --> H+(aq) + HCO3(aq)

HCO3-(aq) --> H+(aq) + CO3-2(aq)

but the "net ionic" should be reporte only as

CO2(aq) + H2O(l) --> H2CO3(aq)

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