<p>Starport: they do but when determining the shape of a molecule you only take into account the lonepairs of the main atom. Still I am pretty sure it was TF because “mutual repulsion” indicates symmetry to me, therefore nonpolar… hold on I read it somewhere in my book too…</p>
<p>I got like 4 TTCE’s in a row in second column :/</p>
<p>dumb question: for the one about specific heat of a solid, was it I,II+III? (balance, thermometer + calorimiter but not in that order)</p>
<p>yeah… it was? unsure for calorimeter but it’s at least the thermometer and scale</p>
<p>but wait was the PF3 Question TTCE?</p>
<p>I thought it wasn’t calorimeter… I mean, I’ve done labs like that w/o calorimeter…</p>
<p>even in a polar molecule there is mutual repulsion - no matter what, each attached group on the central atom tries to get far away from the others, as much as their electronegativity will allow. If a molecule is polar, one repulsion may be stronger than another, but still all are repulsing each other - thus “mutual repulsion”</p>
<p>i don’t know about the PF3…in my book it said that mutual repulsion of electron clouds caused linear and octahedral electron geometries, both of which are nonpolar and symmetrical… so i’m not sure. plus i dont remember the rest of the 2nd statement, lol.</p>
<p>clich, yeah its I, II, and III.</p>
<p>oh yeah and 3d … was one of the answers. rigiht?</p>
<p>ha as was argon</p>
<p>“Starport: they do but when determining the shape of a molecule you only take into account the lonepairs of the main atom. Still I am pretty sure it was TF because “mutual repulsion” indicates symmetry to me, therefore nonpolar… hold on I read it somewhere in my book too…”</p>
<p>Damn, you’re right. AH!!</p>
<p>But what is the consenus now?</p>
<p>TTCE or TF? </p>
<p>Because what cliche just said implies TF.</p>
<p>Do you know what EXACTLY the second statement said?</p>
<p>And one last question. What was this question exactly: “CO3-2 was a conjugate base in the provided acid-base reaction.”</p>
<p>i got 3d too.</p>
<p>most poeple think itst TTCE. it really depends on the second statement which I barely remember, sorry. Barron’s page p76-ish relates mutual repulsion to linear, but they are so misleading.</p>
<p>omgbut can anyone remember any of the other T/F/CE’s whatsoever? Its like its been erased from my memory… ha weirdd</p>
<p>HCO3-+OH—>CO3-2+H20</p>
<p>What does this mean about CO3-2?</p>
<p>acid
base
more easily reduced
more easily oxidized
??
(something like these)</p>
<p>I said base. And I’m pretty sure.</p>
<p>T T CE -1- something about F2 being a gas, and 2- something about dispersion forces. i think i put T T no CE, but i’m probably wrong.</p>
<p>Wait a minute…wouldn’t that mean that CO3-2 is a Bronsted-Lowry Acid? It donates its H+ to H20. </p>
<p>Is that the same thing as a conjugate-base as someone said the answer was earlier?</p>
<p>i think its a base. starport im not sure which one you are arguing for? but you’re right its a conjugate base (if thats what you were saying)…</p>
<p>itsasmallworld i think i put TTCE, but i cant remember why.</p>
<p>is NH3+ a stronger base than water???</p>
<p>no it doesn’t… HCO3- donates the H+</p>
<p>for NH3 stronger base question
i put TF … is that right?</p>
<p>It could not be a buret because it is used for the dispensation of liquid.</p>
<p>water is a poor conductor (t) water ionizes only slightly 10^/14 (t)</p>
<p>i put t t ce?</p>