I agree with nFrank; you would need concentrated peroxide to not only kill the snails but even more challenging would be to have the peroxide to eat away the mucus haboring said eggs.
Your best bet is to dose with copper in your tank to get rid of snails, but it will kill all invertbrates in there as well. I would leave it alone; snails (while a bit annoying) do not eat plant leaves that are healthy and do more good than harm.
Your best bet is to dose with copper in your tank to get rid of snails, but it will kill all invertbrates in there as well. I would leave it alone; snails (while a bit annoying) do not eat plant leaves that are healthy and do more good than harm.