<p>Yep, I said TF also because metals with metallic bonding conduct electricity because of the “sea of mobile electrons” not because of negative and positive ions.</p>
<p>That’s what I got. Metals usually are positive ions. In fact, I haven’t even seen a negative metal ion, yet. More importantly, metals have metallic bonds. They have a sea of electrons, so I guess the positive and negative ions would be indistinguishable.</p>
<p>Metals inherently disown electrons among themselves; compounds bound with metallic bonds are not comprised of ions.</p>
<p>I hope you guys know that burets are used to measure the amount of dispensed liquid.
In other words, they are upside-down graduated cylinders.</p>
<p>Can we stop arguing this buret/graduated cylinder question? We all can agree the question was a bad one and needed more context. But regardless, the most accurate way to measure a liquid is with a buret.</p>
<p>ok, let’s stop arguing. What I don’t like about SAT tests is that we’ll never know what answer they’ve considered, so I guess we can argue forever</p>
<p>Can anyone remember some more questions not thus far discussed? Even if they were easy ones, it would be nice to have some confirmations.</p>
<p>The question about NaOH, it was .1g I believe.</p>
<p>Does anyone have a guess for an approximate curve? How many out of 85 is a 800, 750, 700… etc.</p>
<p>Wait, what question was that? and the one that was C2O3, that was half a mole of oxygen reacting to form one mole of carbon dioxide? But using how many moles of the original CxOy thing you were trying to figure out?? Does anyone remember.</p>
<p>I am confusing myself.</p>
<p>The question was something like this: AN unusual oxide of carbon is formed by reacting .5 mol of oxygen to produce 2 mol of carbon dioxide.</p>
<p>So the CxOy must be C2Oy since all the C in CO2 came from the CxOy. Since 4 mol of O ATOMS are formed, you subtract .5 mol of oxygen GAS (which is 1 mol of O ATOMS) to have 3 mol of oxygen atoms in the CxOy. Thus C2O3</p>
<p>wait, the unusual oxide of carbon is formed??? how does that work? whats the equation then?</p>
<p>I got C2O3 too</p>
<p>Damn. I put CO. I thought it was forming one mol of CO2 :(.
Does anyone remember anymore questions haha :)</p>
<p>Sorry… I meant the CxOy reacts with oxygen to form CO2</p>
<p>do u guys remmeber the queston with like… balance, calrimeter and thermometer?</p>
<p>I can’t remember the question but I chose I & II… it was calorimeter and thermometer… is that right?</p>
<p>I put the answer with all three of them. Since specific heat incorporates mass, temperature, and heat, I thought it would make sense that all would have to be measured.</p>
<p>I put all three as well. That I was iffy on. We did an experiment with this in AP Chem once though. We made a calorimeter using two cups and a thermometer and we also used a balance for measuring. So, I went on that.</p>
<p>What about the question with “which is the proper lab blah blah”, was it all three? Because I didn’t think you were supposed to add excess acid back to its original container.</p>
<p>You never put a substance back into it’s original container. The substance has already been exposed to air when it is taken out of the original container meaning there could be contamination. What were the other choices?</p>