<p>for the h2s and hcl was it asking for the h2o coefficient. i think buret and flask was used</p>
<p>Oh, what’s the reason for liquefaction of nitrogen? I put covalent bonding.</p>
<p>liquefaction is LDf?
Buret isnt used…
The special paper thingy was used to separate ink.</p>
<p>and there was also NA+ and so4 as an answer dont remembr which question</p>
<p>somebody confirm number 101 and number the H2S HCl question
i put TTCE and 1 as the coiffencent …</p>
<p>The only element of the 5 to bond covalently was carbon</p>
<p>Liquefication is London dispersion (same ? on official test)</p>
<p>yea i put london dispersion forces</p>
<p>can somebody plz answer these questions i really need to go lol</p>
<p>Nuts. </p>
<p>Yeah, the ball point pen colors was chromatography, which bends light through different degrees of polarity.</p>
<p>so the answer was 3? since there was 3 carbons</p>
<p>i also put LDF</p>
<p>what was the h2s hcl question?</p>
<p>What is 101? Seems to be undergoing hot debate, I dont remember what it is.</p>
<p>Na2SO4 dissociates into Na+ and SO4 2-</p>
<p>To reiterate the lab ?'s</p>
<p>Filings - magnet and cardboard
NaCl solution - distillation
precipitate - funnel and filter paper
different inks - chromatography</p>
<p>Buret/flask was not used</p>
<p>Why cant you distill for the precipitate one?</p>
<p>Why were the spectator ions Na+ and Cl-?</p>
<p>the easiest way is to use a porous barrier so the liquid gets through but the solid precipitate remains</p>
<p>Distillation filters through evaporation and condensation, so differences in boiling points are used.</p>
<p>Also, it just makes sense to use a filter for precipitates.</p>
<p>@dkauf Because their charge didnt change from the reactants to the products</p>
<p>1o1: pressure increases as the container’s volume decreased because at constant something pressure increases i put TTCE</p>
<p>covalent bonds was seems to be 3 since it was only the carbons which bonded colavelently.</p>
<p>Precipitate is in a solution full of ions, so that raises the BP and makes it very difficult to boil off the solution. I have always used filter paper to separate a precipitate.</p>
<p>Spectator ions were Na+ and Cl+ because those compounds are always soluble. H+ was not a spectator because it was present in H2O which does not dissociate.</p>
<p>for the spectator ions its because they were aqueos at the beginning and at the end so theyd didn’t undergo a chemical chance and they would be crossed out of the complete ionic equation</p>