<p>Copper doesnt dissolve in H2O.. It dissolves in NaOH though..
we already discussed this...</p>
<p>I put T/T/CC for both nuclear problems..
F/F for the hydrocarbon problem
T/T/CC for the copper problem (prob wrong)
i had another T/T/CC
and i def. had a T/F</p>
<p>if u list the other CE problems, i can name...</p>
<p>and does anyone know how much i lose for those problems??</p>
<p>and how many can u miss and get 800?????
what is the usually points???
something around 5 wrongs</p>
<p>The alpha particle one was definitely F/F</p>
<p>An alpha particle contains 2 protons and 2 neutrons. The atomic number of the resulting atom was incorrect.</p>
<p>wait how is the hydrocarbon problem false?</p>
<p>i thought they only contain carbon and hydrogen</p>
<p>hydrocarbon is F/T.</p>
<p>C2H4 and C2H6 have different percentages by mass of carbon and hydrogen. However, hydrocarbons are ONLY carbon and hydrogen.</p>
<p>EDIT: repeat post. </p>
<p>PR and Barron's had really nice curves. By about 8 points. Hope everyone is burned out as well from APs and we get an awesome curve.</p>
<p>yes, h2 eventually is used up and no additional h2o is formed.</p>
<p>yea.. sorry.. i answered F/T</p>
<p>What about the one with H2 reacting with O2 to give water and there were 5 graphs as answer options</p>
tm2000
May 7, 2005, 3:49pm
131
<p>guys, come on: QUANTA</p>
<p>quantum mechanics..... it's obvious, quanta is a specific amount of energy, particles need a specific amount to change levels and stuff</p>
<p>the graph goes up and levels off once equilibrium is reached and the O2 is used.</p>
<p>if u ppl had trouble w/ the H2O problem, pray hard for the 800...</p>
<p>Now, lets recite all CE problems...</p>
<p>800 is possible with 6 wrongs or 2 blanks and 4 wrongs</p>
<p>a raw score of 77+/78+ is 800, u guys can figure out the rest</p>
<p>then 790 = 7 wrongs</p>
<p>"aim for 750 if u cant get 800 and when you get 600 tell people that you aimed for 500"
-Me</p>
<p>i dunno if point are taken off for getting CE questions wrong...any idea any1</p>
Mirage
May 7, 2005, 3:55pm
140
<p>for the classification one in the beginning about lab equipment, were there two burets?</p>