<p>just you too...</p>
<p>Okay compiled list. bolded ones are the ones I'm still unsure of. Answers typically in parenthesis...until i got lazy. some don't make sense because i copy and pasted and i'm tired. for some of them I don't even know what questions they're referring to but people agreed with the answers so I added those to.</p>
<ol>
<li> How limestone reacts with acid rain (neutralization because limestone is CA(OH)2 and when you pour an acid onto that it'll probably neutralize
limestone is a base and acid rain is an acid)</li>
<li> NaF, NaCl, NaBr, NaI, NaAt: either highest melting point or lowest melting point (NaF)</li>
<li> Potassium and water (forms OH- and H2)</li>
<li> Iron filling and sulfur powder (magnet and cardboard)</li>
<li> NaCl and water (distillation)</li>
<li> Different ink (chromatography)</li>
<li> An electron in a radioactive reaction</li>
<li> K+ and Na+ are not isotopes</li>
<li> Diamond and graphite have the same structure because the are both pure forms of carbon
not the same structure (F/T)</li>
<li>The CO2 one in the TTCE section (TT)</li>
<li>Cs is the most reactive in water because it is an alkali metal</li>
<li>Which one isn't in the elemental state (Na)</li>
<li>O2 and O3 what are they? (allotropes)</li>
<li>CO2 forms an acid but not a STRONG acid</li>
<li>Collection of gas over water: O2 and H2 only (no HClsoluble in water)</li>
<li>Electrons dont take up 1/3 mass</li>
<li>Brittle, could conduct electricity when melted (ionic bond)</li>
<li>Water boiled at a lower temp at higher altitudes and air pressure is lower at higher altitudes. (True b/c water boils at lower temp. but false b/c pressure is lower at higher altitudes) (T/F)</li>
<li>Limiting reagents question: 1A + 2B -> 1AB2 there was 500 milliliter .1 molar solutions mixed together, how much product was formed</li>
<li>Vanadium: VO2 if you have 5.1 grams of vanadium and its oxide form weighs 8.3 grams, what is the formula?
5.1 g is .1 mole of Vanadium and the rest 3.2 is 10% of 32 grams (the weight of two oxygen atoms).</li>
<li>HgI2 + H2S --> HgS + 2HI or HgCl2 + H2S --> HCl + HgS2 or Hcl + hgs in products (I because it was definitely Hg(2) in the reactants since it was HgCl2. And since S is (-2), then the subscripts will cancel out so HgS and it does not need any coefficients.)</li>
<li>Lab question: cant heat graduated cylinder</li>
<li>How many unpaired electrons could fit into a p orbital (3)</li>
<li>0.05 on PbI2 (moles=MV/(Vtotal))</li>
<li>65 grams for something</li>
<li>lowest coefficient for that equation with the CaCO3</li>
<li>isomer question T, T, CE</li>
<li>3 for oxidation one (nitrogen family)</li>
<li>temperature cannot be used to use ideal deviation</li>
<li>heat of sublimation</li>
<li>22.4 for one of them</li>
<li>11.2 for the other gas one (2 atm, NO2, 273K)</li>
<li>CL- stronger oxidizing agent than S</li>
<li>C to C02 oxidization (0 to +4)</li>
<li>The one where temperature decrease from 200K to 100 K, pressure increases or decreases I don't remember, then they ask for the volume. (the volume remains the same at 8L)</li>
<li>With Nitrogen, what oxidation number did it changes to. Was it from +5 to something? (+5 to 3)</li>
<li>does not something to temperature (density)</li>
<li>London dispersion forces for the Nitrogen question</li>
</ol>
<p>your number 24 is wrong. PbI2 is a precip. Exclude volumes. you are solving for moles. For 34 you didn't need to redox it. it was just a simple balancing question. However, nice job on doing this. Thanks.</p>
<p>Also can u tell me if naoh dissociates to oh - i put t/f for that.</p>
<p>oh and h2o is NOT a strong electrolyte yes?</p>
<p>right, H2O isn't an electrolyte at all</p>
<p>New question : gases more compressible than liquids? if so then t/f becuase they have fewer inter. forces.</p>
<p>gas is not more compressible than liquids.. that one was F/F. or that's what i thought at least.</p>
<h1>5 on lydia's list, was that the one with the condenser & distillation?</h1>
<h1>7&16 were the same question it was the roman numeral one.</h1>
<p>Fe2(SO4)3 dissociates into 5 mols of ions.</p>
<p>gases are more compressible than liquids...gas has a lower pressure...therefore you can compress it more</p>
<p>oh wait, that makes sense. <em>sigh</em> well i suppose that isn't as bad as my counting one. it said how many covalent bonds did propane have and i drew it all out and i counted 11 somehow when it's really 10.</p>
<p>Does anyone have the satchem chat transcript?</p>
<p>I put TTCE for that. I thought gases were more easily compressed that liquids BECAUSE they had few intermolecular forces...</p>
<p>wait, was it fewer or weaker?</p>
<p>x3rose, yes #5 is the condenser and distillation.
What does #10, #18, #20, #24, #25, #27, #29 refer to in my REVISED list?</p>
<ol>
<li> How limestone reacts with acid rain (neutralization because limestone is CA(OH)2 and when you pour an acid onto that it'll probably neutralize
limestone is a base and acid rain is an acid)</li>
<li> NaF, NaCl, NaBr, NaI, NaAt: either highest melting point or lowest melting point (NaF)</li>
<li> Potassium and water (forms OH- and H2)</li>
<li> Iron filling and sulfur powder (magnet and cardboard)</li>
<li> NaCl and water (condenser and distillation)</li>
<li> Different ink (chromatography)</li>
<li> An electron in a radioactive reaction; electrons dont take up 1/3 mass (I and II)</li>
<li> K+ and Na+ are not isotopes</li>
<li> Diamond and graphite have the same structure because the are both pure forms of carbon
not the same structure (F/T)</li>
<li>The CO2 one in the TTCE section (TT)</li>
<li>Cs is the most reactive in water because it is an alkali metal</li>
<li>Which one isn't in the elemental state (Na)</li>
<li>O2 and O3 what are they? (allotropes)</li>
<li>CO2 forms an acid but not a STRONG acid</li>
<li>Collection of gas over water: O2 and H2 only (no HClsoluble in water)</li>
<li>Brittle, could conduct electricity when melted (ionic bond)</li>
<li>Water boiled at a lower temp at higher altitudes and air pressure is lower at higher altitudes. (True b/c water boils at lower temp. but false b/c pressure is lower at higher altitudes) (T/F)</li>
<li>Limiting reagents question: 1A + 2B -> 1AB2 there was 500 milliliter .1 molar solutions mixed together, how much product was formed</li>
<li>Vanadium: VO2 if you have 5.1 grams of vanadium and its oxide form weighs 8.3 grams, what is the formula?
5.1 g is .1 mole of Vanadium and the rest 3.2 is 10% of 32 grams (the weight of two oxygen atoms).</li>
<li>HgI2 + H2S --> HgS + 2HI or HgCl2 + H2S --> HCl + HgS2 or Hcl + hgs in products (I because it was definitely Hg(2) in the reactants since it was HgCl2. And since S is (-2), then the subscripts will cancel out so HgS and it does not need any coefficients.)</li>
<li>Lab question: cant heat graduated cylinder</li>
<li>How many unpaired electrons could fit into a p orbital (3)</li>
<li>0.05 on PbI2 (precipitate)</li>
<li>65 grams for something</li>
<li>isomer question T, T, CE</li>
<li>3 for oxidation one (nitrogen family)</li>
<li>temperature cannot be used to use ideal deviation</li>
<li>heat of sublimation</li>
<li>22.4 for one of them</li>
<li>11.2 for the other gas one (2 atm, NO2, 273K)</li>
<li>Cl- stronger oxidizing agent than S</li>
<li>C to CO2 oxidization (0 to +4)</li>
<li>The one where temperature decrease from 200K to 100 K, pressure increases or decreases I don't remember, then they ask for the volume. (the volume remains the same at 8L)</li>
<li>With Nitrogen, what oxidation number did it changes to? (+5 to 3)</li>
<li>Does not something to temperature (density)</li>
<li>London dispersion forces for the Nitrogen question</li>
<li>H2O is NOT a strong electrolyte (so I and II only).</li>
<li>Gases are more compressible than liquids, fewer intermolecular forces (T/F)</li>
<li>How many covalent bonds did propane have? 10</li>
<li>Fe2(SO4)3 dissociates into 5 mols of ions</li>
</ol>
<p>Question(s):
1. Does NaOH dissociate to OH- (T/F)?
2. Coefficient of PbI2? Balancing equations question.
3. Is it possible to emit a particle with a negative charge in a nuclear reaction?
4. Lowest coefficient for that equation with the CaCO3</p>
<p>For 24 (which is now 23) I basically just copied what someone wrote. But from what I remember, the question asked for the coefficient. So what was the answer to that? </p>
<p>For 34 (which is now 32) I dont even remember such a question. I simply copied what someone wrote.</p>
<p>I got lazy doing this, especially towards the end. For some of the questions, I just copy and pasted what people wrote so Im not a chemistry expert or all that.</p>
<p>How many stoichiometry questions were there? 3-4 right?</p>
<p>Can anyone post the answers to those if they remember</p>
<p>thanks sooo much lydia... this helps aLOT =D</p>
<p>neways, there was another question about the degree of acidity</p>
<p>that didn't come up yet... was it indicator or electrolyte?</p>
<p>i put electrolyte... most of the ppl that took it at the same time said</p>
<p>it was indicator... T-T</p>
<ol>
<li><p>I. CO2 has polar bonds but is not a polar molecule II. CO2 has linear structure. TTCE</p></li>
<li><p>I. [picture of hydrocarbon] is an isomer of [another picture] II. isomers have the same molecular formula but differetn structures. TTCE</p></li>
</ol>
<p>Questions:
1. I. NaOH forms a basic solutoin II. it dissociates into OH- ions. TTCE
2. I think it was a question asking how much PbI2 would be formed.
3. Yes it is possible. beta decay</p>
<p>34/32 - there was a reaction asking what the oxidation states changed for N in the reaction.</p>
<p>all i remember that some1 hasnt said is #70 was solids to gas - sublimation</p>
<p>I dont think naoh dissociates.</p>
<p>naoh dissociates. strong base...</p>
<p>and i agree with rose about CO2 being TTCE</p>
<p>and what was the exact question about the volume of the gas when temp changes from 200 to 100. what was the given change for pressure?</p>
<p>anyone on the degree of acidity?T-T</p>