Question: Write an ionic and net ionic equation for the following reaction between Pb2+ and HCl?. A water sample is suspected to be contaminated by Cd2+

Write an ionic and net ionic equation for the following reaction between Pb2+ and HCl?.

A water sample is suspected to be contaminated by Cd2+ ions. How could you know if the sample is really contaminated?

What reagent(s) may be used to identify and confirm NH4+, Fe2+, and Zn2+ ions?

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