Assume that an aqueous solution of a cation, represented as a blue sphere, is allowed to mix with a solution of an anion, repre-sented as a red sphere, and that the following result is obtained: Which combinations of cation and anion, chosen from the fol-lowing lists, are compatible with the observed results? Explain Cations: Na+, Ca2+, Ag+, Ni2+ Anions: Cl-, CO3 2-, CrO4 2-, NO3

Video transcript

Hello everyone today. We have the following problem. The following results are obtained when an agreed solution of Canyon green spheres and an ion orange spheres is mixed, which of the following pairs of Canton and an ion are consistent with what has been observed. Explained. So when this solution for every one and ion which are these orange spheres here we have 12345678. So we have eight and ions for everyone. An ion, there are two Cantons, Cantons or green spheres. These fears. Right here we have 123456789 10 12 13 14 15 16 17 18 1920. So we have 20 of those. And so for the precipitate to be neutral in charge, the an ion must have a positive to charge and the canyon Must have a positive one charge because the charge times the amount of carry ons and an ions is the chemical reaction and calculation that is solved. And since there's a principle that all group one assaults are soluble, the Catalan must be copper plus and the an ion Must be Sulfur 2 -. And so when you combine these two, when you combine copper and sulfur, you're going to get cobra sulfate. And so the question asked us which of the following pairs is consistent. And so that pair is going to be the first option here that has copper, wow, it's going to be this copper two plus this copper plus and the sulfur two minus. And so with that we've answered the question overall, I hope this helped until next time.