Net Ionic Equation for Reaction of Aqueous Mercury & Hydrochloric Acid

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Net ionic equations for reaction of aqueous mercury with hydrochloric acid require you to take a close look at the ions you're going to be using. Find out about a net ionic equation for the reaction of aqueous mercury with help from an experienced chemistry professional in this free video clip.

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Video Transcript

Hi, I'm Robin Higgins. And this is the net ionic equation for the reaction of aqueous mercury with hydrochloric acid. So, let's take a look at the ions we're going to be using. For mercury, we're going to write that as Hg, that's its atomic symbol. And if it's aqueous, it's probably going to be a dimer, means there's two of them. And it has a positive two charge. We'll write this in parenthesis, so we remember it's aqueous. And the other thing we're looking at is hydrochloric acid, represented as HCL. And in solution that's going to break up into H plus and CL minus. So, let's put them together. If we have our mercury two plus, got our aqueous, and we add our chloride ion, this is also aqueous. Then what that creates is this new compound, Hg-two CL-two (Hg2Cl2). And the name is this is mercury one chloride. Mercury refers to the fact that we started with this ion of mercury and not another one. So, we're almost done. We've got our ions, our product and all we have to do is balance. So, we've got the correct number of mercury, that's two. But we've seen our product, we have two chlorines and here we only have one. So to balance, we add a two here and we're done. I'm Robin Higgins, and this has been the net ionic reaction, the net ionic equation for the reaction of aqueous mercury and hydrochloric acid.


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