Predict whether a chemical reaction occurs and write the balan...

Question

Predict whether a chemical reaction occurs and write the balanced molecular equation.

Ag₂SO₄ (aq) + KCl (aq) →

Accepted Answer

Here in this practice question it says, predict whether a chemical reaction occurs and write the balanced molecular equation. So here we're given silver sulfate and potassium chloride. So step 1 tells us that we need to break it up into its ions. So we have silver and sulfate. Don't worry about the fact that there's 2 silvers there, just break it up into its ions. Silver is plus 1. It's a transition metal but its charge is always plus 1. Sulfate is a polyatomic ion, so 2 minus. Potassium is in group 1 a so it's plus 1. And chlorine is in group 7 a, so it's minus 1. Now remember, we're going to swap ionic partners, opposite charges attract. This plus 1 and this minus 1 oops, forgot the l. This minus 1 are attracted to each other. So their numbers are exactly the same in terms of their charges. When they're the same they just cancel out. So here we'll have a g c l plus here, the numbers and the charges are not the same. When they're not the same, they don't cancel out instead they crisscross. So 2 comes here, 1 comes here. So it's gonna give me k 2 s o 4. Now, we have to determine if a reaction has occurred. And it only occurs if we create a solid, a gas, or liquid water. If we think back on our solubility rules, so silver, there is no rule for silver from Guyana Cash or Ca'ns, but there is a rule for chlorine. Chlorine is a halogen. Right? We know that from Guyana Cash, halogens do have exceptions. Right? So their exceptions are happy. If they're connected to mercury, silver, or lead, they will not be soluble, they will be insoluble and make a precipitate. Here, chlorine my halogen is connected to silver, so it's not gonna be soluble, it's gonna be a solid. So we know a reaction has occurred because we've created a solid. Now let's look at the other one. We have potassium sulfate. So potassium is group 1 a. Group 1 a elements, if they're connected anybody, it doesn't matter, they're always gonna be soluble. So we don't even need to look at the solubility rule for sulfate sulfate, because by default the whole thing is soluble because of the presence of potassium. So here goes our equation, now we have to balance it. Here we have 2 silvers, but here we only have 1, so I'm gonna put a 2 here. Next, we have 1 sulfate, 1 sulfate. Then we have, if we look, 2 gets distributed to chlorine, so we have 2 chlorines, and then we have 2 potassiums here. So that means I have to put a 2 right here. Now every element within this structure is balanced. So now we're gonna say my coefficients would be 1, 2, 2, and 1. So this represents my balanced molecular

Struggling with Introduction to Chemistry?

Predict whether a chemical reaction occurs and write the balanced molecular equation.
Ag₂SO₄ (aq) + KCl (aq) →

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Struggling with Introduction to Chemistry?

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Predict whether a chemical reaction occurs and write the balanced molecular equation.
Ag₂SO₄ (aq) + KCl (aq) →