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Write tbe corect fomula for the following compolnds: 1I) iron (UID) acetate 12) magncsium sulfide 13) ammonium nitrate_ 14) cobalt (III) sulfite 15) copper (II) oxi...

Question

Write tbe corect fomula for the following compolnds: 1I) iron (UID) acetate 12) magncsium sulfide 13) ammonium nitrate_ 14) cobalt (III) sulfite 15) copper (II) oxideWrite thc correct name for the following: 16) CFA 17) Lil 18) CuSO: 4HO 19) Ca 20) EcQ

Write tbe corect fomula for the following compolnds: 1I) iron (UID) acetate 12) magncsium sulfide 13) ammonium nitrate_ 14) cobalt (III) sulfite 15) copper (II) oxide Write thc correct name for the following: 16) CFA 17) Lil 18) CuSO: 4HO 19) Ca 20) EcQ



Answers

Identify each case in which the formula is incorrect. Give the correct formula for the indicated name. a. silver oxide, $\mathrm{SiO}_{2}$ b. sodium sulfide, $\mathrm{Na}_{2} \mathrm{S}$ c. barium oxide, $\mathrm{B}_{2} \mathrm{O}_{3}$ d. calcium nitride, $\mathrm{Ca}_{3} \mathrm{N}_{2}$ e. lithium bromide, $\mathrm{Li}_{3} \mathrm{B}$

Okay, so first we have competent one assignment this young, my humor One give us information. That's the copper car Tire has a class one charge and we know that's this. And tonight I am has a menace. One charge. So the charges on American yukol nervous? No sub scripts need it. Um, the correct is C U s in for copper once, and it next we have strong team call right. Strong tin is a metal and they has two positive charges as our chilled plus and chlorides ion is c l o to minus according to the formula Ruoff Ionic compounds, they subscript off the kite. I aced American. You go to the charge on the line item So the charge on the ice is just on this one. We don't need to rights. That's and they subscript off. The ana is numerically you cope to the charge on the high tile which is two plus So the crap family will be a star se 002 to next is a program IQ as it We know that the formula for Bronek as it it's just ish be, are all three. That's Bronek ass it. There is a prefix per PR in this name, which means there is addition off one oxygen item. Therefore, our programming asset will be rat. That will be reaching as HBR for. And don't forget there is a queue. Remember? That means the substance is dissolved in water. Next one is, um, hydride IQ as it so we know the announce will be out rounding, right? So it iss I menace and say, cracked from that I will be h i. And it is also can we do that after you watch it? So we and it's a cute um Next we have dice Odeon ammonia in crossfit dice ODI innings. What right? We have true sodium. And, um, onion is right. It is the among, um, I am, which is an h four plus and phosphate on. I'll has created night Charness. It is P o for three minutes. That's what's phosphate and I am So let's writes these formula. We know that's the positive charges and next charges has to be equal. Numerically, we have 3 19 charges and the ammonia in I am has one positive charge. Which meals Each should be having one positive charge. So you'll read in a two and H four and p o for that's dice Audience among you Foster it Next we have lead. Come on It The German humor to indicates that lead has a plus to charge on. And the poli atomic ion come on its components its CEO three to minus has the minister charge since the charges on your American you call. There is no substrates necessary in this from that so we don't write PB sales rate. Just makes it that next we have teen for right against a numeral the German. You more Tallis. That's Tang has a plaster charge. So how about fluoride? The on my, um has well right. The Florida I am Hasn't Manus one charge they are not equal? Remember the subscript ops Anel is numerically equal to the charge off the cat ion. So the subscript here should be to the formula Will be s and have to Next we have patra phosphorus deck A self it No, this example. Molecular compounds The Greek prefix attached house as the number off each atom is a monaco. So Titra means four on deck Cummings What? 10 bed? So phosphorus is just pee on sulfide is as we have P four as 10 is our form. Um, Okay, so next one is mercury to oxidize the humor natural monument to houses that Mercury has a pastoral charge on Oxy that we know it dearly has a to Manus charge. Since the charges on American, you come to each other, the femina will just be a g o next. When we have a great one, I would died. So the German humor one house us that mercury has a plus. One charge was the charge for I died. I am red. It is menace one in charge. I madness. Um, can we just Raj h g. I know in this case, the kite I look great exists as a plasterer charge, but it tells us the Roman numeral Bond house as we have passed one trash they have were when you to balance the pastor charge at one. Atoms look crazy. Now we have two atoms off McGary. The trash will be plus true on simmer. Similarly, we need to add another. I don't item to balance the active chargers. Okay, so next one is civilian hexafluoride, and it's very simple hacks. Um ings what? Six. So we just read I cf six like that. They say someone I could our compound

So for this next time we want to write formulas for certain given names of compounds. So for a we were told we have aluminum sulfate. So a woman, um, has an oxidation state of positive three. And then soul feet has an ostentation state up negative too. Which means it makes a bill to this. 043 So whatever is here goes here. You know, whatever is here, goes here. So looking at our next, we have ammonium di chrome eight and decorum. It looks like this. So for ammonium, we know it has not station state of positive one something we calculate out. And then we can calculate that Die Chrome eight has a role on oxidation. State of negative, too. So what? We combine these together we find in a church four to and that die chromite. Okay, you can move on to see So we were given silicon Tetra fluoride. So for silicon, we know that is going to have oxidation State of Plus four and Tetra fluoride. It's gonna have one of negative one. And how I got thes was on the name within the name itself. We were told silicon Tetra fluoride, which means that we have four florins. Now we know that flooring has a oxidation state. Negative one. So to get a tetra fluoride and her name, we would have had to have a positive four for silk on in just so that we can see out. This is C Ah, yes, I if for next For D, this one's easier because we're told that it is iron two oxide. So since the iron Oh, sorry. Iron three oxide. Since we know that is iron three oxide, the oxidation state of iron is plus three. Go ahead, write that And we know the oxidation State oxygen is negative two. So that means when we combine these together we get iron to oxygen three. So next we can look at e e is try carbon di sole. Fine. So just from the name itself we know we have three little try carbon and then die Soul flied, which is to Seoul first. So then we were told that we have cobalt. What was we were told for F that we have cobalt to nitrate, so that means we were told COBOL has an oxidation state of positive too. And nitrite nitrate is and 03 and we can find the oxidation. State is for nitrate minus one. So we find this fully to be cobalt the nitrate to we can move on to look at G. So, G we were told we have hydro, bro Mick acid. And when you hear hydro, bro make acid or hydro anything acid, we know that it's going to be a hydrogen, and then the element. This time it's bro mix, so we know that it is April meat with them for high. We were told it is chronic acid, and we know we were talking about I Arctic or I otik acid that I owed ICT is I o. And when we're talking about ionic acid, we're talking about off course, the acidic hydrogen, and we're talking about I on Dick, which is I 03 And we know to add this hydrogen because we're told that it is an acid. And last but not least, for J. We have phosphorus, die chloride, try fluoride, and we can answer this just from looking at the name itself. We were told that we have just one phosphorus. We have dike, all right. She's We have to Corinne's and try fluoride, which means we have three floor ings and that's it

Everyone. So in this question was asked to determine what is wrong with the formula for each of the following systems. Then write the correct formula. lithium fluoride ally to Iran. He solidified for three years. I live in a hydroxide Elwes three. Uh Let me have a rock solid zinc plated 73 and no toys can seem chloride. CS helpless. So we'll diet. It's yeah serial number than men. Yeah. Then formula as far as you laugh then we can say correct formula. All right for me love. So a name is lithium flee. Right need here. Mhm. Fully right formula. It's a life too. And its correct formulates a lot of name. Be part Iran three sulfide three sulfide 33 years. It's correct formulas Every two x 3 then see part. Yeah it's. Mhm. Yeah aluminum hydroxide rock side that is L. Oil tries so correct formulations A. L. Oh it tries the next beat zinc nitrate. Mhm. Yeah. I think nitrate. Mhm. Their babies. Their entry. Yeah. And or die. Yes. So correct formula is. Mhm. And so dan and all three twice then. Yeah. E buzz calcium chloride. Mhm sneakers. Yeah. That is. See you C. L. Plus. Yeah. For me like CSEL two.

Got some formulas on some of the names soldiers be running through all of the's. So we've got lithium chloride first. So that's Al. I see out, then. We've got copper carbonate where we know copper is. See you in carbonates, C 03 We've got three Oxygen's. Then we've got Hydra bro Mick acid, which is H B R. That's quite a simple one. Calcium nitrate is quite difficult in commonly. You wouldn't be expected to know the formula for that one. You'd be expected to know simpler formulas, But do be worry in case is required. We've got sodium perk low right now. Pack glorious Cielo four. And lastly, we've just got aluminum hydroxide deaths. That's a L O H.


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