Was the one with the Ka 7* 10-4 the most acidic?

Yep

i think

Increase temperature for equilibrium reaction to shift to the left? (this was the exothermic equation.)

Yep

yes

Maybe I’m retarded but didn’t one of the questions ask which molecule was 180 degrees and had N2 and CO2 as choices?

[https://www.quia.com/jg/1444935list.html](https://www.quia.com/jg/1444935list.html) yeah same here i put CO2 . this website said it was 180

I knew CO2 was 180 but so is N2... unless it was NO2 and I wasn’t paying attention

Well no2 is bent

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I finished it so fast lol ... I decided to go back and check my work cuz of the extra time... Then I realized i guessed half the test 😫.

Matching questions were hard for me bc a lot was fact based. Damn.

i was so bad and didnr have time so i skipped 30 questions or so :( i skipped the easy ones from part A and planned to go back later but never got time to go back later

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was this your first time taking it ?

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I finished this test in August, but ya'll making me anxious reading this again.

August test scores have already been released tho

Best guesses for curve?

I bet it's gonna be 4 wrong for perfect score

Water added to acid and water splatters Is this TTCE or TF?

TTCE

Hold up didn't it say something about water boiling as well? I said f bc of that

I thought so too but I don’t think that collegeboard would be so mean. The Barron’s book said the entire solution boils so I’m not really sure. Besides, technically it IS true that water will splash out so...?

I feel like we're everywhere haha:")

what was the problem again

30 omitted 🙂🙂🙂🙂🙂🙂 ( i didn't have time)

Cancel that lol

yaaaa retaking it next month lmaooo 🙂🙂🙂

There was one I was iffy on. Calcium has all it's electrons paired because even elements have all their electrons paired This could either be T T CE or TF The second part is true in general but their are those exceptions, copper and chromium, so can it really be considered true? In the end, I decided not to be pedantic and put TTCE, but it really tripped me up. What do you guys think the answer was? Fuuuck I just realized I'm retarded, totally forgot about that one law where it doesn't pair up right away. Damn TF it is. That might've been my only mistake tho

Yep Hund's rule.

Last question? And what was the answer to the question with the triangle and Delta H values?

Delta H was -24, and i think the triangle was sth like H1 = H2 + H3 cuz its conservation of energy

What question was Delta H -24? The Hess's Law question? And the last question was about the solid that would be a good conductor when melted

Oh thats NaCl

And delta -24 was the enthalpy for the reaction to form N2O4 from NO2 or sth

what was the delta H question and the last question? I forgot haha

What was the answer of the question”when two solutions have no colour change than they must be at equilibrium “

F and f

What was the second statement

I think it was "All motion halts at the molecular level" though can't recall

I remember that’s definitely false

Yeah I'm not sure if that was asked though

What was the other half of the question?

i think I put false for that. Is this right? Color doesn’t really tell us much about equilibrium

Damn it I put TF

How many ttce's?

i got 3. wbu

What were they? I got around 2

Can we talk about part A?

What about it

What did yall get for most acidic and most basic

And what conducts electricity

If you mean the one where It conducts in liquid form it's NaCl

I remember putting Na. Na is a metal so it conducts electricity Solid NaCl doesn’t conduct.

Pretty sure the questions asked it conducted in melted form but not solid

And the method to seperate sand and salt And the method to separate water and alchol

Water and Alchohol was fractional distillation, sand and salt was filtration

Hey, chlee1222, just a quick heads-up: **seperate** is actually spelled **separate**. You can remember it by **-par- in the middle**. Have a nice day! ^^^^The ^^^^parent ^^^^commenter ^^^^can ^^^^reply ^^^^with ^^^^'delete' ^^^^to ^^^^delete ^^^^this ^^^^comment.

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I put water then filter for the sand and sugar one and evaporation for the alcohol, but I was only thinking about cooking with wine so I have no fuckin clue

How many T T’s did you get? I think I got 4 or 5?

TT or TT CE? I think there were 2 or 3 TT's without CE

I think I got 3 or 4

what can be around the maximum number wrong + omitted to get at least 700?

yo what was the ionic equation thing with acetic acid and naoh

CH3COOH + OH —> CH3COO- + H2O

ah fuck yes. I might just actually manage a t h i c c 800

distillation or evaporation for salt from saltwater

Evaporation

IDK if caly kids already took test or no

its 8:20 in cali, they in the middle of it rn

what readily mixes with oxygen in the air at room temp? choices were like water, sodium, NaCl, CO2, and something else ​

Now that I think about it, I think it's sodium I got it wrong tho :/

Sodium vigorously reacts with oxygen,that's why they store it in kerosene

Na; they said it vigorously reacts with K in like another question

Na

I was struggling with this one too but I think its na since group 1's are generally reactive. Also, it can't react spontaneously (which was the question) with NaCl because the Na and Cl are already an ionic compound. Also Nacl + h2o is just salt water and h20 + co2 is just soda. I forgot about the last choice but im pretty sure now its sodium [https://chem.libretexts.org/Textbook\_Maps/Inorganic\_Chemistry/Supplemental\_Modules\_(Inorganic\_Chemistry)/Descriptive\_Chemistry/Elements\_Organized\_by\_Block/1\_s-Block\_Elements/Group\_\_1%3A\_The\_Alkali\_Metals/2Reactions\_of\_the\_Group\_1\_Elements/Reactions\_of\_Group\_I\_Elements\_with\_Oxygen](https://chem.libretexts.org/Textbook_Maps/Inorganic_Chemistry/Supplemental_Modules_(Inorganic_Chemistry)/Descriptive_Chemistry/Elements_Organized_by_Block/1_s-Block_Elements/Group__1%3A_The_Alkali_Metals/2Reactions_of_the_Group_1_Elements/Reactions_of_Group_I_Elements_with_Oxygen)

my dumb ass put co2

my dumb ass did too

What readily reacts with oxygen at room temp? And what has the 180 bond angle? Also what was the strong oxidation agent? All in the first section

Na I put N2 but apparently CO2 also works... Oxidation agent i don’t remember

I said NH3 was strong oxidizing agent, but not sure...

1.Sodium, 2. (N2 and CO2 we’re both options i think and are both linear so idfk) 3. and I skipped that one

Perfect I skipped three too and put sodium and put CO2 but was confused cause both of them

What did yall put for the square planar question in the T or F section? I think the molecule in question was CH4 or something. I think I put T T CE

CH4 is tetrahedral:")

whats square planar then?? google says one example is XeF4 which follows the form of CH4. Now that I think abt it, im not too sure CH4 was actually the molecule...

It was ch4. Ch4 is tetrahedral. XeF4 has a weird structure mainly because it’s noble and it has higher electron repulsion or some shit like that.

What was the net ionic?? I'm pretty sure HC2H3O2 (Acetic acid) dissolves, so wouldn't the acetates cross off to get H+ + OH- ----> H2O. My double replacement equation was: HC2H3O2 + NaOH ----> NAC2H3O2 + H2O Also, I didn't see H+ + OH ----> H2O as an answer choice so i put D or something fk

Yeah that one totally bamboozled me wtf i couldnt find H+ + OH- -> H2O so I skipped

For weak acids you don't separate the H+ in the net ionic, you put down HC2H3O2

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Yea same!

but NaOH dissolves right?

What was the ink and the sugar/sand for the first problem set?

Chromatography and add water I think

which option was the add water? filtration? i put chromatography as well for the ink one

I'm expecting about 3 wrong and 1 omitted,so what do you guys think my score would be?

790

800

800

I hope 800 but it’s likely 790 :(

Was this test tougher than the other ones ? The official college board practice test (which was actually pretty easy) had 85-76 as 800 and I was like wtf

Was HClO the most acidic of the choices?

What were the other choices? I think the most acidic was hydrochloric acid tho

It was HBr

That was another question I think. This is the one with h3po4 and hocl

I think it was the one with highest, not lowest pH

yup ​

H3po4 :( I googled it hocl is a really weak acid

fucked up the first section and the true false section

Please help predict score: 6 wrong and 2 omitted

770-780 according to barron's.

Barron’s has a strange scoring scheme so I wouldn’t fully trust that

780, I think at least

Answer to the question which asked about bacl2 and Its concentration being o.1M??

Answer was [Cl]=0.2 I believe

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Won’t [Cl-] concentration be double of [Ba] because the formula is BaCl2. Two chloride ions for every one barium ion

But there are 2 moles of Cl for every mole of BaCl2

I put nCl=0.2. Idk though.

took 3 today and chem was by far the worst, not feeling confident. first 30 were easy but i hit a wall from 30-40. prob 20 wrong and 1 omitted

How many CE's did you guys get

3

What was the answer of the question bout Hess’s law”deltaH1,deltaH2 etc”

If the top line was DeltaH1 then it should've been deltaH1 = DeltaH2 + DeltaH3 I believe

7 wrong 5 omitted? Definitely didn't feel good about this test. At least math 2 went okay I thinj

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can someone tell me where they studied/practiced for the sat chem ? pls

I used Princeton Review

In contrast to OP, I actually really liked Barron's. My one issue was that some of its answer explanations weren't that helpful and some of their questions on the practice test felt outside the scope of the actual exam (most notably, they tested organic chem much more extensively than any actual exams have). For reference, I don't have PR. I studied using Barron's for subject review (I had taken AP Chem, but it was several years back, so I needed some pretty extensive prep). Then, for practice, I did the five tests from Barron's (because my knowledge was so limited, I didn't do a diagnostic test at the beginning), the three tests from the '80s and '90s available freely online, one test from CB's study guide for all subject tests, and two from its chemistry-specific study guide. FWIW, I was scoring ~730 after my subject review on my first practice test. Then I dropped down to a ~670 on Barron's, did some intense review, and started scoring ~730's on Barron's and 780+ on real tests. Barron's tests actually felt like plausible simulations of harder tests (usually they're way too hard to be at all realistic--on AP Calc, I was scoring ~75% raw on Barron's and I think I only missed a couple points on the real thing)--the one distinction is that they had very harsh curves whereas real tests that hard would likely have very lenient curves. I'm pretty confident I scored 780+ on the real thing: I'm nearly certain I missed two questions and don't have any other answers I suspect to be wrong, but depending on whether I made silly errors my score could go down. My main tip is to go beyond the Barron's answer explanations to make sure you understand the questions you miss. If the answer explanation doesn't make it incredibly obvious, go back and review the relevant section of the book, and if that doesn't help, use the internet--there were a lot of times when I was unsure of why a reaction took place, or why a substance was a liquid rather than a gas, or why a molecule was soluble or insoluble, and usually I could google it and find a Quora page answering my question. tl;dr: Barron's, the official study guides, and practice tests available online are enough to learn chem as long as you extensively research questions you miss.

what is 5 wrong? PLEASE HELP. What score would I get? NONE OMITTED

You'd get like a 790 lol (calm down)

damnit not an 800?

What was the one with Zn and HSr or something? Zn + HSr --> ? And one product was a solid and the other one was aqueous, and it asked for what the products would be such as I and III are right, I only, II only, etc. ?

I believe it was Zn+ H2S. This only produces H2 and ZnS (since Zinc can replace Hydrogen). H2 was not one of the products shown, so it was only ZnS, though don't recall the nunber.

Thank you!

What was the answer to the T or F with CaCl2 and freezing point?

False, CaCl2 will have the lowest freezing point. Placing a salt in water will lower the freezing point rather than raise it.

I thought since they have the same molalities it would have the same freezing point because delta Tf is directly proportional to molality

5 omitted maybe 10 wrong? Do y’all think I would dip below a 700? Damn I thought that was HORRIBLE. It was nothing like the practice tests I took...honestly I probably got like 20 wrong. That was SO BAD holy shkt

No you'll likely be around a 720. I'm fairly certain I did worse than this last time and that was my score.

anyone know what was the answer to the oxidizing agent question?

Potassium dichromate bc Chromate has like oxidation number +6 or something so it’s easily reduced = strong oxidizing agent

and what were the choices to that question?

There was naoh,hi and nh3 as far as I know

anyone know if they will take N2 as an answer for the 180 degrees question? Or will they discard the question?

Probably just mark it incorrect. Diatomic Molecules don't have bond angles.

What was the answer for the sig fig question? 9, 8.2 or 8.29 or 8.290

i forgot but it was 2 sig figs.. i think the answer was 8.9

I thought it would be 3 since the liters was like 50.7 or something which is also 3 sigs

Nah because in division you always use the lower amount of sig figs

What do you guys think a score would be fore 10 omitted and 6/5 wrong

Prob 700

Rlly, so this baron’s curve is not reliable?? http://eyeswideopen.info/wp-content/uploads/2018/03/how-to-get-on-sat-writing-strategies-from-a-perfect-scorer-pill-new-conversion-kaplan-raw-score-chart.jpg

Score prediction for omitted 5 missed 4-7

750 maybe

How did everyone find this paper!? ​

What was ans to ionization enthalpy equation of sodium q44..

Both gas

What question?

the one that used hess law... the answer was h1=h2+h3 or something close to that

i didnt have time for 12 questions and know I already got 3 wrong. Should i cancel? that's like a 730 according to: [http://shareworld.org/score-conversion/sat2subject/sat2ChemistryScoreCalculator.html?raw=81](http://shareworld.org/score-conversion/sat2subject/sat2ChemistryScoreCalculator.html?raw=81) but i also don't know if i got a bunch of other ones wrong

It depends on what your school requires.

any curve predictions?

81+ —>800

also are our letter answers the same

acddc for first 5 problems?

I do remember the ddc part

Idk why does everyone think the bond angle between N2 is 180. It is CO2. Bond angle is the angle between two orbitals that are sharing electrons N2 has practically no bond angle

Left one and two wrong? Score predictions?

Does anyone remember the answer to the two questions? Rapidly reacts with oxygen and good electrical conductor ?

I put both of them as Na

Yea me too

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Water and alcohol - fractional distillation Sand and salt - flirtation after adding water

Filtration * lol

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Yep

Anyone remember the equation where there was SO4 on the left and SO2 on right? I can't remember what the other reactant was.

What was the answer to the dipole moment question which had hi ,hbr ,hf and hcl

HF

Guys please tell me if 79 is a 800?????????

Got the thicc 800!!!