# chemistry need help plzzz tomorrow is a TEST!!!

99,148 results

### geography

i need a climate graph for the philippines and australia so i can compare them!!! by tomorrow plzzz

### chemistry need help plzzz tomorrow is a TEST!!!

phosphoric acid is the active ingredient in many commercial rust-removing solution.calculate the volume of concentrated phosphoric acid (14.6 mol/L)that must be diluted to prepare 500mL of a 1.25 mol/L solution. how can i calulate the volume cocentration for this question.... ...

### Physics

Please help!!! Physics test!? I have a physics test tomorrow on projectile motion, and I don't feel ready for it. I'm having trouble in the class and I need to ace this test. The problem is I get confused when I get a problem. I don't know how to proceed. After I read the ...

### Chemistry, Science

How many Cl- ions are present in 2.35 mol of CaCl2 and please show steps ! Need help so I can study for a huge test tomorrow

### Chemistry 1

Does anyone know what websites are good to use for Chemical Reactions and balancing equation. I have a test tomorrow, and i need to really practice those. Thanks

### algebra

I really need that to my examples in my report tomorrow those i posted question, its a kind of test tomorrow please help me now please... even if now only...

### Math Connexus Academy Unit Test Unit 5 Lesson 11

I need the answers to this test! I have it due tomorrow! Please help! :(

### Subjects

What's Content Support 7c ???? it says it in my schedule i'm going into the 7th grade this week plzzz answer also wat do u do ????? plzz answer plzzz i kno it's a helping class but do you learn the same thing in ur regular class ????? plzzz answer

### Algera I

I NEED HELP BIG TEST TOMORROW NEED THIS TO PASS And your question is?

### spanish

so are you coming to my house tomorrow? Translate into spanish plzzz

### Science 7R

Tomorrow I have a science test on circulatory system and is there a practice test THAT IS ON 7TH GRADE SCIENCE REGENTS LEVEL!?!? please i really want to do well on the test if take a pre-test thanks ;) btw --- i'm going over my notes for the test just that i want to take a pre...

### ENGLISH

I have a test on Lord of the Flies tomorrow. What do I need to know?

### math

is 7 less or greater then -1-(-10)? PLZZZ HELP IM HAVING A TEST ON THIS

### Test is tomorrow. I have butterflies..

i need some encouragement...THANK YOU in advance.

### college biology

give a liable explanation for food test.... include test for starch,, simple sugar,,, fat and protein ,,,, please include chemistry and chemical equations... thanks ... due tomorrow

### Chemistry

What's is the concentration of silver ions in a saturated solution of silver carbonate? The k^sp of Ag2CO3 is 8.1x10^ -12. Is the answer 5.88x10^-8? I have a test tomorrow and I really need to make sure I'm doing these problems right, but I feel like I am not.

### Math

What is Schlafli notation? I seriously need to know how basic it is before tomorrow's test?

### geometry

ok... i need help with geometric proofs..i have a test tomorrow and don't understand it one bit..

### 9chemistry

could u please help me find a chemistry beaker that has a spout in the middle of the cup on the right side and points down? i cant seem to find that type of beaker anywhere and i need to know what its called for a test tomorrow. thanks for ur help:)

### science

what is the best way to study for my chemistry test tomorrow

### English

If it snows tomorrow, what will you do? 1. If it snows tomorrow, I will go out with my dog. 2. If it snows tomorrow, I will make a snow man at the back yard. 3. If it snows tomorrow, I will meet my girl friend. 4. If it snows tomorrow, I will do snow fights with my friends. 5....

### to ms.sue

is there a website where i can take a review test of the test i have heard of a land because i forgot to take my practice book home and tomorrow is the test.

### math

I have a test tomorrow on inerior angles and need it explianed more thsn the teacher did,please help

### Science

I have the 1st part of final tomorrow, how can I study it'll be a multiple choice test. Need help asap!

### chemistry

I know how to use the equations pv=nrt and P1xV1/n1xT1 = P2xV2/n2xT2, but I don't understand when to use them. I have a test tomorrow and I'm going over some word problems, but I can't figure out how decide which formula you need to use. Is there a specific way to know?

### Social Studies

what does the word muslim mean? please help fast i need to know for my study guide for my huge test tomorrow

### chemistry

what is the density of an 84.7g sample of an unknown substance if the sample occupies 49.6cm3? what volume would be occupied by 7.75g of this same substance? PLEASE help need the answer tonight i have a test tomorrow i kind of not understand the second question. THANK YOU SO ...

### History, Urgent

How did the Louisiana Purchase set a precedent for the powers held by the President of the United States? If someone could copy & paste, I cannot follow links... and I need to know this. I have a test tomorrow, and i need to study. This is my last question to study for. Thank ...

### to ms.sue

it's still confusing when you subtract it. at 8:00, can you give me a review test because tomorrow is my unit 9 test.

### Math, Sci, S.S., English

What's Content Support 7c ???? it says it in my schedule i'm going into the 7th grade this week (wednesday) plzzz answer also wat do u do ????? plzz answer plzzz

### geometry

I need to know about congruent angles IN vertical angles for a test tomorrow.

### French

i need help on my french test tomorrow... i have no idea what to study... please help me!!

### Chemistry

i don't understand electron affinity and it isnt in our text book at all and we have a test over it tomorrow...can someone help me???

### trig

hi, I have a placement test coming up tomorrow, and I'm pretty confident about all the stuff that's going to be there except trigonometry. I took trig two years back and I understood it very well. But now it's been so long and I can't even remember the basics. Is there any ...

### math test

Hi! I have a math test coming up tomorrow, and I need to prepare. but,i don't know how I should. . . any help would be great. she told us to: Be prepared to identify and explain functions, linear functions and proportional functions. Be prepared to use the new function ...

### AP Chem!

Hey, I have a test tomorrow in ap chemistry on gases. My teacher said that the test would be many open ended questions that are sort of like "explain what happens when a balloon is lowered into 77degrees C of liquid nitrogen and why" Can you guys give me some other examples so...

### i really need help with my hw

can someone plzzz help me

### English

Could you please check these sentences? I urgently need them. 1) Decadent writers (the Aesthetes is possible?) fostered (??) the ideal of the Wildean dandy, a member of aristocracy who demanded absolute freedom and despised the Victorian values of work and morals. 2) His ...

### Math

I need help in finding the vertex of a parabola using an equation in this form: Ax^2 + Bx+C I have a test on this tomorrow. For example: 3x^2 +1x - 2 How would I find the vertex in this?

### chemistry help plzzz

how can i calculate the pH of the solution obtained when 50.00mL of 0.150mol/L hydrochloric acid is added to 75mL of a 0.111 mol/L aqueous sodium hydroxide solution. need help i am stuck with that question thank you :)

### Chemistry

Please help, test tomorrow. Explain the organic chemical reactions and IMF interactions for glycogen and triglyceride with a trans double bond - how does this look?

### math!

hi im lauren and i have a big math test tomorrow(7th grade) and i need 2 know wht interval means. And i need the expalnation 2 be so simple that a little kid can understand it. lol. Can someone answer like in the next 10 mins plz! thx!! hurry peeps!!lol

### Maths algebra

I wrote 47.235 as my answer then it asked me to use the calculator to find a complete answer.How I'm I suppose to do this. please I need help I got a test tomorrow. Thank-you.

### 4th grade, social studies

Need to answer "what made the early colonies a success?" Is it because the lands were already explored, so they just got the riches and power? Not sure. Confused. Test tomorrow.

### ecxel unit

Ms.Sue can you help me by explaining and telling the answeres. i have an excel test tomorrow. i know how to use excel but the test is written.

### FRENCH 2-TEST!

AHH! I just remember about my french test tomorrow on qui and que. How do you know when to use which? HELP!

### Chemistry

I have a test on the general concepts of thermochemistry tomorrow. how should i study for it since its not based on problem solving, just concepts?

### chemistry

phsophorous trichloride and phosphorous pentachloride equilibrate in the presence of molecular chlorine according to PCl3 (g) +Cl2 (g)->PCl5 (g) Kc = 2.01 at 500k If a 1.000L reaction vessel is charged with .300 mol of PCl5(g) and allowed to equilibrate at this temperature...

### college history

What were the events in Germany, Russia, and Ireland after World War I? My history textbook does not discuss the question at all. Please help. I need to know the answers in preparation for the test I have tomorrow. Thank you.

### math

If cotalpha = root 3, calculate (sin alpha)*(cot alpha) - cos^2alpha exactly. can you plzzz help urgent because I have a major test tommorow thnx for all your help

### math

i have a HUGE math test tomorrow, And I need some help on Factoring. Any websites that will give me good tutorials? I've found some but its total bs.

### algebra

Graph the solutions of each linear inequality. y≥4x-3 where would i start on the graph and where would i go ? BIG test tomorrow need help asap :) thx

### physics

Ok. I'm writing that big test tomorrow, and I have no idea what should I do with this : An alien is 5m from an astronaut. The astronaut notices the alien and they simultaneously begin to run from each other with v[alien]= 2m/s and v[astronaut] = 4m/s. Find their mutual ...

### Chemistry Urgent please help! Test tomorrow

if you have a mixture of sodium chloride and sodium bromide, could you use its conductance to determine the concentration of each solution? explain

### Chemistry

I did a melting point test for menthol and the question is asking what type of compound is demonstrated and the answer should include inter molecular forces I also need to explain this same question for a solubility in water test and solubility in oil test

### pre algebra PLZZZ help

Why do you have to use estimation to find the number of triangles you need for the string?

### Halloween

It's saturday and halloweens tomorrow. But I was wondering is trick or treating sopost be today or tomorrow? I've heard peolple going today and many people say tomorrow. I know sunday is an school night and some people wiill be at church. I have no idea if I should trick or ...

### English

1. Should I use a question mark or a period? I can't go today so would it work tomorrow( ) 2. Is this correct? I did WELL on the test. NOT I did GOOD on the test. WELL=ADVERB OR ADJECTIVE GOOD=ADJECTIVE

### Chemistry

Does anyone know of any sites that make learning to balance equations easy? I just transferred to a new school and the chemistry class is way ahead of my old class. I really don't get it. Please help since there is a test tomorrow and it's on stuff that you have to be able to ...

### maths

What is mode n average for 2 students test scores our of 25 for maths. A Test 1: =21 Test 2: =24 Test 3:=19 Test 4: =21 K Test 1:= 18 Test 2:= 19 Test 3:= 19 Test 4:= 17 Test 2:= 19 Test 3:= 19 Test 4:= 17. N Test 1:= 16 Test 2:= 15 Test 3:=19..

### Math History

I need to know the history of integers for a test tomorrow. I have searched numerous history and math sites, but none tell a specific person. Does any one know who it is or where I can find this information?

### Bio physics chemistry pre medical

Vitamin a has a molecular formula c 20 h 30 o. How much no of molecules will vitamin a contian in 500mg capsule? ? Plz tell me now tomorrow is my test .I will be very grateful of u. .

### Bio physics chemistry pre medical

Vitamin a has a molecular formula c 20 h 30 o. How much no of molecules will vitamin a contian in 500mg capsule? ? Plz tell me now tomorrow is my test .I will be very grateful of u. .

### MATH - Rational Expressions

HELP PLEASE! I am taking my college placement test tomorrow and am working on the sample test now. I need help with this question about Rational Expressions... For all r (<INSERT>is not equal to sign)+ or - 2 r(squared) - 5r+6 (All Over) r(squared)- 4 I know the answer ...

### chemistry

Using electron bookkeeping draw a Lewis dot diagram for NF2H and N2H2 determine how many electrons each atom should be assigned. Thanks Guys I really appreciate it, my assignment is due tonight and the test is tomorrow, could you explain it,thanks

### Chemistry

how can i know if a solution is aqueous or solid? i have a test tomorrow and don't know how to do this PLEASE HELP!!! i have this question on my homework...Will precipitation occur when the following solutions are mixed? 1. Na2Co3 and AgNO3 2. NaNO3 and NiSO4 3. FeSO4 and Pb(...

### CHEMISTRY--URGENT

HNO3 with pH 3 is mixed with 2 L KOH with pH 12. assuming volumes are additive what is the pH of the final solution? I have absolutely no idea how to do this. I do know the answer, though. I have a test tomorrow and I would really appreciate it if someone could help!!!!

### math

I need some serious help. I am a grade 10 student and I have this assignment due for tomorrow, but I can't get past the first question. The first part of the question asks me to calculate the volume of a box (prism) measuring 100mm by 60mm by 40mm. I got that part- the answer ...

### Chemistry

I need to determine the "percentage composition unknown" whatever that is. My current data: a) mass of test tube and foil cover: 7.5323 g b)temp of water bath: 375.65 K c) mass of test tube and foil and gas as sample: 7.5423 g d) barometric pressure: 1.0190 kpa e) mass of test...

### English

1. You are to finish this project by tomorrow. 2. You must finish this project by tomorrow. ------------------------------ Are both the same in meaning? Do you use #1 frequently in everyday speech? ================================= 3. He is to go to London tomorrow. 4. He is ...

### Chemistry

I'm confused on how to do these. Please show and explain how to do these. Test/quiz may be tomorrow. Pop Quiz!!! How do you calculate the percent composition of each of the following compounds? a.) Magnesium hydroxide b.) Calcium Cyanide c.) Nickel (ii) Iodide d.0 Copper (i) ...

### chemistry

Why is there one large increase in ionization energies for each element? Which atoms form ions that are larger than the atoms? I have a test tomorrow and these are the questions I have troubles understanding.

### chemistry

I'm reviewing for a test tomorrow, and I was wondering about this question. Convert 55 mi/gal to meters/liter. I'm not sure how to go about it, though when I tried it I got 89000.0m/4L. But, I'm not sure if that is right.

### Chemistry

Which test tube has largest amount precipitate? Why? (use terms such as limiting reactant and excess reactant to explain) Do I just name the test tube that weighs the most and I need help with the explanation. I did not list the actual chemicals just need general statement.

### statistics

i have a test tomorrow so i need to know how to do this problem. help me please!! A IRS auditor randomly selects 3 tax returns from 53 returns of which 13 contain errors. what is the probability that she selects none of those errors?

### Languages

I have an oral quiz tomorrow for Latin I in VLACS, but I don't know the questions that I will be asked. I'm on module 3. Did anyone take Latin I at VLACS? Please help. I need to know before tomorrow!

### Functions

Find the sum of the 50 greatest negative integers. I'm supposed to find a, d, and t(at)n, but I'm not sure which is which. I think it makes sense for n to equal 50, but apart from that, I don't know what else to do. I would really appreciate some sort of explanation on how to ...

### science

I have a test tomorrow and i need to be able to say what type of bacteria something is in their agar colonies. I am having a hard time diffirentiating between bacillus cereus and bacillus subtilis. does anyone have any good websites that would help? or know any tricks?

### Study?

I have to take a test tomorrow on math to decide whether or not I can make it into the next grade same for tomorrow for reading. What should I do to study? I don't have a textbook to study cause it's at school. Should I look over my notes on everything I covered in math this ...

### Just for I.AM..RUNNING.FROM.MYSELF,

I'm doing a poster in science and its about radon. Radon is a radioactive gas and it causes lung cancer, but i don't know what to do for the poster and it's due March 16,2012 but i have to turn it in by tomorrow so that the poster can get to the science specalist so the ...

### math

Help please I have a test tomorrow morning

### math

you are making a rectangular table. The area of the table should be 10 ft^2. You want the length of the table to be 1 ft shorter than twice its width. What should the dimensions of the table be? This question has to be quadratic equation! I really need to know the answer, ...

### physical chemistry

at least 6 sources of error of determining concentration quotient of FeSCN? plzzz sir

### math

please help, I have a test tomorrow and i don't get this. solve by substitution 1. y = x - 3 x + y = 5 2. 5x + 2y = 0 x - 3y =0

### math

i have a test tomorrow and im still not sure how to do this. can you please help me? p={a,b,c} Q={a,c,d,f} Q-P=?

### us history

I have an AP US History test tomorrow and need to make a study guide. One of the words/phrases is The Virtuous Republic. I cannot find a definition for U.S. History what The Virtuous Republic is. Thanks!

### English

I have an Enlish test tomorrow on Romeo and Juliet. My teacher said he's gonna put 5 questions about 5 different quotes on the test. What are some highly likely testable quotes from Romeo and Juliet?

### economics-to Ms Sue OR ANYONE

I HAVE TO PREPARE A PROJECT ON 'CONSUMER AWARENESS'(CLASS 10TH). SO CAN YOU PLZZZ TELL ME THAT WHAT IS TH NEED OF CONSUMER AWARENESS IN TODAY'S WORLD?& HOW CONSUMERS ARE EXPLOITED? &SOME MORE INFORMATION ABOUT 'CONSUMER AWARENESS'. ALSO PLZZZ GIVE SOME TIPS ON PREPARING A ...

### Math ( Percents as Ratios)

Sue receives a test score of 75% on a test with 20 questions. How many did she get correct? 👉 I need help making these kinds of questions into proportions because I have a Benchmark Test (like a mid year test) coming up & I need to be able to set up these kind of ...

### 5th grade math

can you please explain &show me how to get these answers to common denominators,find the sum & difference,write in simplest form,7/10-3/5 =,2/3-1/6 =,5/6-7/12 =,5/12+1/4=,1/6+2/9=,5/8+1/2=,3/8+1/4= i'm really having a huge problem understanding this,it's getting late,i'm ...

### geography (agriculture)

I have an A.P human geography test tomorrow and i can not figure out what some of these words mean. can somebody please help?? thank you so much. i need help on who carl saur is, mediterranean agriculture, transhumance, pastoral nomadism, and the green revolution.. please help...

### English

Choose the option that corrects the error in the underlined portion. If no error exists, choose "No change is necessary." Ted told James that they had been given too much work by their boss and the deadline was tomorrow, which seemed unfair. Underlined ---is tomorrow, which ...

### English

Choose the option that corrects the error in the underlined portion. If no error exists, choose "No change is necessary." Ted told James that they had been given too much work by their boss and the deadline was tomorrow, which seemed unfair. Underlined ---is tomorrow, which ...

### studying

I was wondering if anyone had some good studying tips. I have a big science test tomorrow and I need to learn the material very quickly. Write know I am saying the words out loud as I re-write them. My teacher always tells that studying IS NOT reading.

### biochemistry

for each of these qualitative test,barfoed test,benedict test,seliwanoff test,bial test,molisch test,and iodine test, describe the class and give aspecific example of a carbohydrate that would yield a posiyive result?

### geometry

I keep forgetting, but I have a test tomorrow: what is a linear pair?

### Math (Help This Will Be on My Test Tomorrow!)

y= ax^2+bx-4. How would i find the equation of this parabola with the points (0,-4) (1,0) (2,2) (4,0) and 6,-10)?

### Biology

I need to do a project on any one cell organelle and i have started on lysosomes. Its a powerpoint presentation and i need to present it tomorrow. In the procedure packet it says that we need to mention this-"a works cited slide" what does it mean??? what do i need to do? ...

### please help!!!!! someone

Each exterior angle of a regular polygon is 15 degrees. 1.Determine the number of sides of the polygon. 2.What is the sum of the interior angles? if the exterior angle is 15, then the interor angle is 165. 165n=(n-2)180 solve for n. I need help to study for my "The Giver" test...