<p>wow i thought u could miss up to 6 for a 800</p>
<p>Ok perfect, trying to get whatever I remember out :D</p>
<p>strong acids are
- better conductors than water
- forms hydrogen when reacting with Mg
- ph of greater than 8</p>
<p>is 2 true? i was questioning this because it forms hydrogen gas, and not elemental hydrogen</p>
<p>I put I and II.
yes, II is true, go down the strong acids. Because H+ is a cation and Mg will bond with the anion, hydrogen will be released in strong acids.</p>
<p>ionization energy, Isoelectronic, kinetic energy
The sun emits ultraviolet radiation
The earth emits infrared radiation
Salt and sand are separated with a funnel
Copper and iron are separated with a magnet
HCL and H2 gas are separated with that last picture of bubbling water
9 L of water to dilute HCL
SiCl4 is tetrahedral
Highest kinetic energy was CH4
Partial pressure of N2 is 100
Copper solution was blue
Silver and something else formed a precipitate
Phenalthapin turns BASES pink
Conjugate base question? I think it was H30+ and H20 or H20 and HO-
Question about solution when mixed with something forms white precipitate (was it the nitrate compound?)
N2 = triple bond, F2 = single covalent bond
Na2CO3 = ionic and covalent bonds
O2 and O3 are allotropes
gas one is the last instrument picture
partial pressure= 1OO
one of the balancing… 5 H2o and 4 Co2
electrolysis of water 2h20 → 2h2 + 02
Which element oxidized? the element oxidized was Fe2+ because it went from Fe2+ to Fe3+ so it lost electrons and oxidation involves the lost of electrons
Ionization of water H2O–> H3O+ and OH-
electricity… presence of ions
Adding which ions will lower solubility of barium sulfate? I, II, and III</p>
<p>barium sulfate one is I and II only</p>
<p>^ That is correct.</p>
<p>is a -5 and 800?</p>
<p>@banned</p>
<p>even if it asked for acid , conjugate Base H30+ and h20 would still work </p>
<p>NH3 + H30+ -----> NH4+ + H20
base + acid -------> conjugate acid + conjugate base</p>
<p>What was the answer to the true/false one about the boiling point?</p>
<p>what was the one with the Ag2X3… which ion will form a compound… *** does that mean… (assumed everything would with ag)</p>
<p>cl-
so4 2-
some other crap… i put so4 2- as a guess</p>
<p>@happycamper: TTCE is the general consensus</p>
<p>@koreaneddy312: i believe it was Al2X3 and the answer was SO4^2-</p>
<p>@mufc oh yeah thats what i meant lol. but why??</p>
<p>Al has a +3 charge and SO4 has a -2 charge. So Al2(SO4)3 makes a neutral compound</p>
<p>@thesmiter. I’m not absolutely positive, but I believe the second statement for the water vapor one was that it boils when the vapor pressure is less than or equal to the atmospheric pressure. I put TF because doesn’t water boil when vapor pressure is equal to, not less than, atmospheric pressure?</p>
<p>Thats an ion tho… why wouldnt cl work? it would be AlCl3 and that’s still (neutral)</p>
<p>@sicendice</p>
<p>I don’t think that that was one of the answer choices. I believe the answer choice was H20 and H30+ not the other way around; thus, it is incorrect. I am nearly 100% sure that I got that question right if not, then I wasted 5 minutes on a single question.</p>
<p>@mufc1110 around a 780ish</p>
<p>ooooo wait was it asking what the x was??? Damn i read the question wrong</p>
<p>because in the problem it says : Al2X3. Since there is a 2 in front of the Al it forms a +6 charge (2 x 3 = 6). Also, since there is a 3 in front of the X you know you need 3 of some kind of ion to balance out the +6 charge. Only a -2 ion can do this so SO4^2- is correct.</p>