<p>How about the products with like CaC03 + H20 or something.</p>
<p>it was D, the choice that had METAL and then C03 too, cuz then cuz of common ion affect more reactant is produced in the equation youre given.</p>
<p>oh was it CrC03?</p>
<p>was the alcohol water separation method distillation because they have boiling points? i think the gaseous method would work too...</p>
<p>yeah it was crco3</p>
<p>yeah, that one was distillation, cuz functional distillation is used if the things have boiling points within 25 degrees of eachother, which they do.</p>
<p>there was a problem that gave you X2O3 or something like that and it listed three elements
one of them was Fe-- I said Fe was the only one that could be the variable X</p>
<p>however, Fe technically could not...Fe (III) could</p>
<p>the isomer problem--are they? at first i put they are because I and II both have the same number of each element but then i thought that they must have the same kind of bonds like 2C-Cl and 2C-H </p>
<p>hmm...i think they are isomers though</p>
<p>I said I and II i think its just have the same elements but can have different structure</p>
<p>for the one with oxygen did you put Fe and Boron or just Boron?</p>
<p>and what the hell was up with the last 3 classification Q's?! I've never seen them anywhere before and i took quite a few PT's! It was the diagram that dealt with the Bohr's Model and hydrogen transition/ionization</p>
<p>also, do you guys remember getting hydrate and hydride as answers?</p>
<p>hydrate is with water, hydride was not an answer. metal + hydrogen is a halide.</p>
<p>it was Fe and B, cuz both of them take the +3 ion charge.</p>
<p>with the ionization chart. The first asnwer was A (1 to 2)? then it was E (smallest jump?) Then it was C ( 1 to infinity?)</p>
<p>Is the actual chem curve more liek Princeton Review's or liek the official CB one?</p>
<p>what were the questions for the bohr model hydrogen graph?</p>
<p>1) ground state to first excited state.
2) Lowest energy drop?
3) ionization energy</p>
<p>trickysocksman, metal+hydrogen is halide? :|,.,,,you're kidding, right?
example: Na + H2 --> a halide?..NO!</p>
<p>i can't remember if it was insulated but i definitely remember it was NOT a closed container. even if it was insulated, it has nothing to do with the container being closed or not. since it was not a closed container, i put TTCE</p>
<p>
[quote]
metal + hydrogen is a halide.
[/quote]
</p>
<p>no. a metal + hydrogen, like NaH, is a hydride. </p>
<p>halides are F-, Cl-, Br-, etc.</p>
<p>
[quote]
the isomer problem--are they? at first i put they are because I and II both have the same number of each element but then i thought that they must have the same kind of bonds like 2C-Cl and 2C-H
[/quote]
</p>
<p>i got cnfused at first but then i saw that 2 of them had 2 chlorine atoms and the 3rd had 3 chlorine atoms. so the odd one out was the one that had different number of chlorine atoms, since it can't be an isomer of the other two which had the same molecular formula.</p>
<p>The X2O3 one was just iron. Boron doesn't work because boron is too small to get an octet so is one of the few elements that stable without one. It only needs three bonds and that's all it can form. It can't bond ionically since it's a nonmetal so the compound boron could make with oxygen is B2O2. Iron can bond ionically, losing 3 electrons each to the oxygens making Fe2O3.</p>
<p>B2O3 is a relatively stable compound ! This is an exceptional condition. In this case, Octet rule doesn't work !</p>