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Tna Drors Ino nonta7om Jonan ol toabibin tohdlona Ueo Ilua rugkzl nulumilim and nuniniuni Yaluoe ou Oven nbclly lunallote Mananmanm mnaracnig Dunn(9) What 1 Ino Nax...

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Tna Drors Ino nonta7om Jonan ol toabibin tohdlona Ueo Ilua rugkzl nulumilim and nuniniuni Yaluoe ou Oven nbclly lunallote Mananmanm mnaracnig Dunn(9) What 1 Ino Naximum 01e7 + 97 Eelod corrtcl anower bolor ad, I namaalal inund Mnatier boxds comiololu You cnislTho maxnum velt ol Ihe objectre fncllon 1=7+9v /1 Acuedalmno point Mxbuun duclinstelund Tinu mumun O0ds nol EKISI

Tna Drors Ino nonta7om Jonan ol toabibin tohdlona Ueo Ilua rugkzl nulumilim and nuniniuni Yaluoe ou Oven nbclly lunallote Mananmanm mnaracnig Dunn (9) What 1 Ino Naximum 01e7 + 97 Eelod corrtcl anower bolor ad, I namaalal inund Mnatier boxds comiololu You cnisl Tho maxnum velt ol Ihe objectre fncllon 1=7+9v /1 Acuedalmno point Mxbuun duclinstel und Tinu mumun O0ds nol EKISI



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$\angle \mathrm{A} \mathrm{SO}_{4}$ is boiled with $\mathrm{Na}_{2} \mathrm{CO}_{3}$ to produce (a) $\angle \mathrm{hrCO}_{3}$ (b) $7 \mathrm{nCO}_{3}, 7 \mathrm{n}(\mathrm{OII})_{2}$ (c) $7 \mathrm{nCO}_{3} \cdot \mathrm{Na}_{2} \mathrm{SO}_{4}$ (d) $7 \mathrm{nCO}_{3} .7 \mathrm{nSO}_{\text {i }}$

Hello. This is problem 23 from your geometry textbook. This problem deals with angle by sectors. Yeah. When angles are bisected, they are divided into equal parts. Since I cannot draw the diagram, I've listed the main relationships that are evident from looking at the diagram. Um in your textbook, the overall outside angle, the largest angle is an angle B. A C, Angle BAC is broken up into four Interior angles by three race. We do know that the measure of this overall angle Is 120°. So when we add all four of these angles, it has to equal 120°. Now as we go through the problem and the information that they provide us, They take these four angles and Take the last two angles are created by ray A. D, bisecting angle B A. F. And the right to angles bisect are bisected well are created by ray E bisecting angle F. A C. So we're going to write some arbitrary information down here. So the measure of angle B a f is equal to the measure of angle B A. D plus the measure of angle D A F. We do not know what that exact angle measure is. All we know is that that angle B A F is bisected. So the measure of B a D is the same as a measure of D A F. So we're going to sign the value of X degrees to both of these. Then we'll do the same thing for the right two angles. The measure of angle F. A C. Secret to measure of angle F. E plus the measure of anger E A C nowhere in this problem do they indicate that ray A F divides um, angle be a bisects angle B A. C. So we are cannot be sure that the measure for B a F is the same as a measure for F A. C. But we do know that Ray E bisects angle F. A C. So we are going to assume that it gives it a separate, a different angle measure for both of those. So those are both B. Y degrees. Yeah. Now if both of those are wide agrees, then when we go through this angle um D. A. We want to find the measure of angle D. A. E. If we look at the information we have. So far, we've indicated that the measure of angle D A F. Is X degrees and the measure of angle F E. Is Y degrees. That still does not give us the exact number value yet for angle D A. E. Now we're going to go back and take our initial equation. They informed us that the overall measure of angle B a c Is 120°. If I combine that with the value of X degrees for B A. D and D. F. And why degrees for F A N E A C R equation now looks like this 120 is equal to X plus X plus why plus why That gives us that 120 Is equal to two x plus two Y. At first it looks like we're stuck. However, you should notice 120 and two are both even numbers. So I can factor out a factor of two from both of these And cancel that out. So 120 is two times 60. I factor out too. On this side I'm left with X plus Y. And now I can divide that factor of two from both sides. And it leads me to the equation that's 60 is equal to X plus Y. Where did I see that X plus Y Before this, X plus Y is the value for my angle D A. E. And now we know that X plus Y adds up to 60 degrees. We do not know the exact values for X and Y, but we do know that when they are added together, they give us 60. So the measure of anglo D E. Is 60 degrees.

So for this question, were asked to determine or estimate the bond angles and each of these compounds. So first we're going to draw a sketch of the LewiS structures. Started with the person we have sdf forces. Silicon is a central atom and it will simply have four bonds to four florian's. This is a tetra federal shape since there's four bonds and that means that all of the bond angles are going to be 109.5 degrees and all of the bond angles are equal right. For the second compound we have pf three. So prosperous is the central adam and it is down to three florins and it has one lone pair of electrons. This means that its shape is tribunal your middle. It has three bonds and one lone pair. So that means the fpf bond angle here is going to be less than 109.5. And this is because this tribunal planer shape comes from Petra Cathedral, but instead of four bonds and only three bonds and one of those bonds are placed with a lone pair. And the slow pace of electron has a stronger effect on the shape. So it essentially pushes the flooring closer together, making that bond angle smaller and lastly of SF two sulfur is the central atom and it has to bonds 2 to 4 inches and two lone pairs of electrons. This is a bent shape and it comes from that tetrahedron shape again. But instead of one lone pair like internal pyramidal and it's too unfair house. No, it's bent and the angle it's going to be even less than 100 and 9.5 degrees because those two lone pairs are pushing the florentines even closer together. And they have even stronger effect than they would if there's only 11 pair like in the previous example. Right.

Okay. To find the angles of our Polly gun, we will use the interior angle something? No, I have our angles listed here. And as you can see, there are five for disease, which tells me that this is a polygon or and is equal to five. So let's go ahead and see what all of these angles added up Well, equal to our formula is s equals 180 times and minus two. We know that in his five, so 180 times five minus two, 180 times three is 540. So we know that all of these angles added together equal 540. So let's add all of these together. Check sex plus four x plus X plus two X plus four x gives us 17 x and adding the constants 13 plus nine is 20 to minus ages 14 minus one is 13. So 17 x plus 13 will equal 540 540. Let's go ahead and subtract 13 from both sides. Okay, this 527 and now dividing both sides by 17. We see that X is equal to 31. Now let's go ahead and plug 31 into each of our angles, and we get that six times 13 is 186 degrees for the next 14 times 31 plus 13 is equal to 137 degrees. Our next 1 31 plus nine is 40 degrees. The next 12 times 31 minus eight, will give us 54 degrees and finally four times 31 minus one will give us 123 degrees.

Then then yeah. Then answer food solution each boiled with an with an and h c 03 solution. It will produce integrated, produce, Yeah. Then ceo three as the final product. Therefore, according to the option option C age, correct and said obstinacy is correct. Answer for this problem.


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