Determine the balanced equation for the neutralization equatio...

Question

Determine the balanced equation for the neutralization equation

Ca(OH)₂ (aq) + HCN (aq) →

Accepted Answer

here in this practice question, it says determine the balanced equation for the neutralization equation. Now, before we actually do it, realize that this is a neutralization equation because it possesses an acid and a base. The acid is in the form off hydro scion IQ acid and the base is calcium hydroxide. All right, now step one. We have to break it up into its ionic forms, both ionic compounds. So calcium hydroxide possesses calcium, which is in group two way. So it's charges two plus Hi. Drunk side is a poly Atomic ion in its charge is minus one. Here we have our acid. Now the acid will break up into H plus plus one and then CN minus, which is your sign. I'd ion. Now remember, at this point, opposites attract opposite charges will attract one another. When the numbers in the charges are different, though they don't just cancel out, they crisscross. So too comes here and then one comes here. So that's going to give me see a remember we write the positive my own first, and then the two is for the entire CNN ion. So put it in parentheses and then a little too. Alright, Plus, then we have here we have plus one and minus one. The numbers are the same. So when they combine, they just cancel out now H plus in O h minus. Think about it when they combined, it gives us a check H which can be written as what? And remember, water in these molecular equations will exist as a liquid. So just remember, if you form H o h, that's just water. So we know reaction has definitely occurred because if you create a solid a gas or liquid water, we know a reaction has occurred. All right, so we know water is a liquid, But what about calcium cyanide? Here? Calcium doesn't exactly have its own side ability roll. It's just part of exceptions. Sinai Ion isn't even talked about in terms of sustainability rules. And because it's not stated within saw liability rules, we can assume that it's going to be a solid Now we have our equation, but we have to still balance it. If we look, we have one calcium, one calcium. We have, uh, too high drunk sides here, but we don't see hydroxide exactly within this, uh, product side. That's because it's part of water. So let's just not worry about hydroxide for right now. For CNN, we have one CN here but to over here, right, Two of them over here. So let's put it to here. All right, now let's go back. If we look, we have to hydroxide right being distributed here. So that means we have to Oxygen's there and we have to hydrogen. This, too, is getting distributed to this h. So that also means we have another two hydrogen. So that's four Hydrogen is total on the product side. So if we go to the on the reacting side, if we go to the product side, we would have to place a two right here because that, too, would get distributed to the ages to give us four hydrogen and to the oxygen's to give us to Oxygen's. And we would see that both sides would match. So here this would be one, 212 for the coefficients off our balanced molecular equation. Now, if you want more in depth steps in terms of balancing chemical equations, make sure you go back and take a look at my topic. Videos on balancing Chemical equations. At this point, we've done enough of these that I feel like we've mastered it, so we're not going through every single step with it. And also, these questions are pretty basic or simple in terms of balancing these chemical equations. But if you're still having trouble, make sure you go back and take a look at those earlier videos to keep on practicing. So at this point we know how to balance molecular equations. Just remember to rely on the rules to guide you to your answer.

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