<p>The first and second were easy I got like 780 and 790.</p>
<p>The last one, however, I got a 700... did you guys find that last one unbelievably hard compared to the other 2?</p>
<p>I have heard that PR's chemistry practice tests are all ridiculously easy.</p>
<p>Gyros - I totally agree with you. I actually just finished taking it and now I'm really freaked out. I've been getting 780s, but this one was a 710.</p>
<p>omg i agree!! last night i took the 3rd one, and i got 700ish, i was so freaked out</p>
<p>a word of advice....pr chem tests are much easier than the real thing. i was getting 800's on those things, but on the real test i only got a 710. Part of the low score was because i ran out of time, but i definitely think the PR practice tests are significantly easier than the real deal.</p>
<p>I got 730, 800, 690 on the 3 chem tests...the third one is way harder and deals much more with colors and properties etc than the other two...</p>
<p>Tim, is there any chance that was just test anxiety, or are the PR tests really a lot easier? Does anybody else have any input PR vs. real thing?</p>
<p>How are Sparknotes?</p>
<p>I have the PR book and did 1 test with PR and 3 tests w/ Sparknotes.</p>
<p>I found them about the same though</p>
<p>I thought the PR tests were accurate. I got 740, 760, and 780 on the practice tests and a 760 on the real thing.</p>
<p>thanks gold shadow</p>
<p>Anybody with the PR book, check this out:</p>
<p>Question 42, test 3.</p>
<p>Identify the element with the greatest first ionization energy.
A) Ce
B) C
C) Cl
D) Ca
E) Cs</p>
<p>They're saying it's B. I put C, because I'm almost positive chlorine (closer to fluorine than carbon) has a higher ionization energy. Their explanation says "First ionization energy is a periodic trend that increased up and to the right on the periodic table. After looking at the position of these elements on the periodic table, carbon is clearly the best answer."</p>
<p>Am I right in saying chlorine?</p>
<p>As you go down the table, first ionization energy decreases. Since Cl is in a lower period, it's first ionization energy will be less than Carbon's.</p>
<p>I looked it up and on two different sources it's showing chlorine as having a first ionization energy of 1251.1 kJ/mol and carbon as having a first ionization energy of 1086.5 kJ/mol...so PR is wrong, chlorine has a higher first ionization</p>