# chemistry - exam practice help!!

61,167 results

### Logic

Claudia has four home works to do, go to the market, study for the exam, clean the room, and practice sports, she knows that: -she goes to the market if she studies for the exam. -she studies for his exam if she does not clean his room -if she does not practice his sport then ...

### Science

I have a science exam tomorrow for 9 Space Science. I was wondering if you could help me find free practice exams, tests or questions to review for my exam. We have no way of knowing what your exam will cover. Your best bet is to review your own text, notes, and handouts.

### Integrated Algebra

Where can I find review and exams and questions to practice for this exam? Thanks. Oh and also, where can I find the schedule for the exam dates of it?

### NYS ELA Online Practice Exam - PLEASE read!

Today is my NYS ELA Exam Book 1: Multiple Choice Questions. I know I'm supposed to be at school but the 7th graders take the exam around 12:30 or 12:40. Right now the 8th graders are (still) taking the exam so I'm still at home. Tomorrow is Book 2: Listening and Note-taking (...

### ap chemistry

I have taken ap chemistry but I have language barrier and sometimes I don't get it and I am getting behind.We are already in chapter 9.I don't want to quit. What is the best way to improve and learn faster?Any practice I should do?What is the experience taking ap chemistry ...

### chemistry

4.72 moles of sulfur trioxide molecules contain how many oxygen atoms? i know the answer is 8.53 x 10^24 but i do know how my professor got it **this is one of my practice exam question!

### French

I need to find practice questions from the French Comprehensive exam and the French Proficiency exam.

### chemistry

A sample of 45.1 g of methane gas (CH4(g)) has a volume of 6.20 L at a pressure of 2.90 atm. Calculate the temperature. Another one that I'm stumped on, last question for my practice exam, can you explain how to solve?

### accounting

Can someone give me the site where I can do practice problems for Managerial Accounting. My instructor bases his exam on the CPA, the homework is easy. He said that he wants us to think outside the box. I need practice. All were word problems.

### Biology quick please

I need a practice biology test to practice for my final exam which is tomorrow. I'm a tenth grader and the things we learned were mitosis, meiosis, production of gametes, human reproduction, cell devision, mendelian genetics, probablitity of inheriting traits, dna, and what ...

### Math

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice drills last. How long, ...

### Math

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice drills last. How long, ...

### Mathematics

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice drills last. How long, ...

### math

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice drills last. How long, ...

### Language Arts

I need to practice writing summaries and small essay for my 9 week exam and I am not very good at writing summaries or essays. Can you please help me or provide me with a website that I am able to do practice summaries on. Please help.

### CTS practice tests

I am scheduled to take my CTS test for music in a few weeks. I've been looking on-line for practice tests or old tests that I could take to prepare for the exam. Any clues where I might find some? Thanks

### Chemistry

On a practice exam, we have a question that says "How many enantiomers does kendomycin have?" It says the answer is 1, but I don't understand why?

### AP Exams?

I am in AP Chemistry and AP U.S Hisotry and I have planned on taking the tests. So far I have made an A+ in APUSH, but I an B in AP Chem. I've done kinda bad on the tests I've taken in there and I don't think I will do good on the Ap exam. I think I have a better chance at ...

### Chemistry AP

This isn't quite an HW question, I'm needing any site that gives practice Free Response problems for equilibrium for AP Chemistry if there are any for study and practice.

### statistics

Leslie took two midterm exams and earned the following scores: 82 on the chemistry exam (class distribution: μ = 75, σ = 6.25) and 63 on the physics exam (class distribution: μ = 59, σ = 3.57). Rounding to two decimal points, on which exam should Leslie get...

### chemistry - exam practice help!!

i'm not exactly sure how to do this question :/ i don't even know where to start. "Determine the equilibrium [F-] of the following solution with initial concentrations od [HF]= 1.296 M and [NaF] = 1,045 M (ka for HF is 6.6 * 10 ^ -4) options are a) 1.046 b) 0.251 c) 2.344 d) 8...

### Chemistry

practice exam...not sure how to do this A solution contains 10.0 mmol of H3PO4 and 5.0 mmol of NaH2PO4. How many millimeters of 0.10 M NaOH must be added to reach the second equivilence point of the titration of the H3PO4 with NaOH?

### College Algebra

Hi there. My professor gave my class the practice problems for our final exam. I am a little stumped on a few of them and just need someone to help jog my memory. If you have the time, could you show the steps so I can see where I went wrong and practice it. Thank you in ...

### math

A student’s final grade in chemistry is determined by the following weights: Quizzes 5% Exam 1 20% Exam 2 20% Lab Reports 15% Research Paper 15% Final Exam 25% The student received the following grades: Lab reports: 75 80 70 75 85 69 90 75 Quizzes: 85 60 70 0 75 80 80 80 ...

### Chemistry

On a practice exam, we have a question that says "How many enantiomers does kendomycin have?" It says the answer is 1, but I don't understand why? (You probably have to google a picture of kendomycin!!)

### Chemistry

Our professor just told us that the final exam will be the ACS exam, we are taking general Chemistry II. What is the best way to study for ir? Is the preparing for ACS general chemistry study guide good? If we are taking general Chemistry II do we have to study Chemistry I again?

### Chemistry

Our professor just told us that the final exam will be the ACS exam, we are taking general Chemistry II. What is the best way to study for ir? Is the preparing for ACS general chemistry study guide good? If we are taking general Chemistry II do we have to study Chemistry I again?

### statistics

On this semesters final exam, john scored 72 on his calculus exam and 53 on his statistics exam. The z score for both exams was the same. Which on would he do better on? a. calculus b.statistics c. the exam scores are equivalent

### statistics

On this semesters final exam, john scored 72 on his calculus exam and 53 on his statistics exam. The z score for both exams was the same. Which on would he do better on? a. calculus b.statistics c. the exam scores are equivalent

### math

13. A set of final exam scores in an organic chemistry course was found to be normally distributed, with a mean of 73 and a standard deviation of 8. What is the probability of getting a score higher that 71 on this exam?

### statistics

A set of final exam scores in an organic chemistry course was found to be normally distributed, with a mean of 73 and a standard deviation of 8. What is the probability of getting a score higher than 71 on this exam?

### algebra

What is the final grade for this student? (round to two decimal places) Quizzes = 5%, Exam 1 = 20%, Exam 2 = 20%, Lab Reports = 15%, Research Paper = 15%, Final Exam = 25% Lab Reports: 75,80,70,75,85,69,90,75 Quizzes: 85,60,70,0,75,80,80,80 Exam 1: 80 Exam 2: 70 Research Paper...

### Practice Exam Calculus

f(x) = 6sqrt{x}- 9x n the interval [1,9]. f(c)=f(9)-f(1)/9-(1)=? Verify that the conclusion of the Mean Value Theorem holds by computing Now find,c in (1, 9) so that f'(c) equals the answer you just found. c=?

### statistics

On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \?=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, ?=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/3.57=1.120

### math gr 9

hi can someone please post a website where I can do free grade 9 math exam practice.. i have already tried proprof but they are full...

### statistics

On this semester’s final exam, Susie scored 72 on her classics exam (class distribution: μ = 65, σ = 3.57) and 53 on her psychology exam (class distribution: μ = 49, σ = 2.04). For which exam should Susie expect the better grade? a. Classics b. Psychology...

### Statistics

In Professor Smith's statistics course, the correlation between students' total scores before the final exam and their final exam scores is r = 0.67. The pre-exam totals for all students in the course have a mean of 275 and a standard deviation of 26. The final exam scores ...

### How to calculate marks to pass with the exam

My friend has currently 62.4% and the final exam is worth 30%. She's wondering how much she should get on the exam to at least pass or boost it up. Please show the math :o

### Statistics

On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \σ=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, σ=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/3.57=1.120

### music

how can i get better at piano without a teacher? It's the same answer as the New Yorker responded to this question: "How do I get to Carnegie Hall?" The answer: "Practice, practice, practice."

### eced

A correlatibas .82 was found betweenen number of hours studied and final exam scores. A.students who stuief less received a high exam scores. B.students who studied who studied received lower exam scores. C.studying caused studies to received higher exam scores. D.The amount ...

### Math

Makoto's lacrosse practice last 1 3/4 hours. This week he attended all of the practice on Monday and Wednesday, but he had to leave halfway through practice on Friday. How many hours did Makoto's spend at lacrosse practice this week? 1 3/4 + 1 3/4 +1 3/4. + 1 3/4= 5 1/4 - 1/2 ...

### statistics

Correction On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \?=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, ?=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/2.04=1.960

### chemistry placement exam

has anyone taken a chemistry placement exam prior to their 1st year of college? what's it like? look up chemistry placement exam on yaahoo and there are a whole lot of websites that talk about what you are asking! hope this helps! You might browse these rays: http://www.google...

### Math

Monica wants to know what she needs to get on the exam to get a certain grade in her English class. The term Mark is worth 70% of the course and exam is worth 30%. The following is the formula used to calculate her overall Mark. Course Mark = term Mark + exam mark C=T/70 +E/30...

### Physics for exam

I can't get this question and its been driving me crazy. I need to know how to do this for my exam. Any help would be appreciated. A golfer is practising his/her swing at a distance of 150m from a house. On the way back to the ground, 5.00 seconds after being hit, the ball ...

### English

1. the baseball players lost the game because they were out of practice. (What is the opposite of 'out of practice'? Is it 'in practice'?)

### math

Joelle practiced piano for 45, 42, 55, and 48 minutes in the first four practice days this week. How many minutes does she need to practice on the fifth practice day to have an average of 50 minutes?

### chemistry - exam practice help!!

Given the table below predict the numerical value of the standard cell potential for the reaction: 2 Cr(s) + 3 Cu2+(aq) 2 Cr3+(aq) + 3 Cu(s) Half Reaction E (volts) (1) Cr3+ + 3 e- Cr E= -0.74 (2) Cr3+ + e- Cr2+ E=-0.41 (3) Cr2O72- + 14 H+ + 6 e- 2 Cr3+ + 7 H2O E= 1.33 (4) Cu...

### ap english exam

Does anyone know where I can find a free online copy of questions 28-43 on the 1996 AP English Language & Composition Exam? I found the exam but for some reason they skipped questions 28-43. I couldn't find it online, but it's possible that questions 28-43 were just trial ...

### math

I need help figuring the grade for two students I keep getting a big number. *Note Final can replace a low exam grade 𝐺𝑅𝐴𝐷𝐸 = .15 ∗ (𝐷𝑎𝑖𝑙𝑦 𝑎𝑣𝑔) + .65 ∗ (𝐸...

### Math (Algebra 1)

Juan’s first 3 exam scores are 85, 93, and 87. What does he need to score on his next exam to average 90 for all 4 exams? let x represent the score on his next exam (put this in a multi-step equation) PLEASE HELP

### math

In a course a student's final exam is weighted as heavily as his mid term exam.if a student receives a score of 84 on his final exam 90 on his midterm,what is the average for the course?

### Geometry B: Unit 3: Similarity Lesson5 Practice

If you have done this please help me with just the practice question I have already done the quiz I just need help with the practice problems because they are in more detail.

### stats

Relatively speaking, which statistics exam did you do better on? On your first statistics exam you scored a 72 and on the second exam you scored an 89. Hey, you’re improving! Or are you? On the first exam, the class mean was 71 with a standard deviation of 15. On the second ...

### Exam

Hello I have exams coming up and I was wondering if any of you guys know where I can get some practice exam papers or questions that I can do or download from the internet. I am in year 11, high school, and I have exam on geometry and trigonometry, intro calculus, English and ...

### statistics

For a particular sample of 50 scores on a psychology exam, the following results were obtained. Mean = 78 Midrange = 72 Third quartile = 94 Mode = 84 Median = 80 Standard deviation = 11 Range = 52 First quartile=68 What score was earned by more students than any other score? ...

### Chemistry

Arrange the compounds in order of increasing boiling point. A) CH4 B)CH3CH3 C) CH3CH2Cl D) CH3CH2OH **I know High Intermolecular force = High boiling point!** My question is if A, B & C are dipole-dipole, and D is hydrogen bonding.. how can i determine from A, B & C which is ...

### ACT's

What is considered a good score to achieve on the ACT's? At what score on the 1-36 point scale is so low that you should consider retaking the ACT? I am just curious because I am taking it soon and stressing a little! Here is my advice: Because only the high score counts, take...

### statistics

Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.The third quartile of the scores on the exam is ...

### Legal Transcription

Exam No. 465802 Exam Name LEGAL TRANSCRIPTION PROJECT Need to see someones done exam

### penn foster world history

see ive passed Foragers,farmers,and Builders (exam 007678) & The Axial Ages And Fitful Transitions (exam 007679) but i failed Contacts,conflicts,and The Crucible (exam 007680), Convergence,divergence,and Global Enlightenments (exam 007681), Frustrations Of Progress;chaosand ...

### Final-Chemistry

I have finals coming up in a week and a half. I know I should have started studying earlier, but I just had an exam in my chem class and was focused on getting the information for that exam mastered before I started studying for the final. Now, I'm overwhelmed. I have no idea ...

### algebra

the final exam in a course will count as 30% of the total. prior to the final exam, 245 points are possible. how many points will the final exam be worth?

### Algebra

Nabuko practice the violin at lest 12 hours per week. She practice for three fourths an hour each session. If Nabuko has already practiced 3 hours in one week, how many sessions remain to meet or exceed her weekly practice goal?

### Math

An exam consists of six true-or-false questions. Assuming that every question is answered, in how many different ways can a student complete the exam? In how many ways may the exam be completed if a penalty is imposed for each incorrect answer, so that a student may leave some...

### human growth

The esteemed Dr Bookworm has just completed a study in which he found a +1.0 correction between the number of cups of coffee his students drank right before class and the scores they earned on his final exam. This correlation means that: A. the less coffee the students drank, ...

### english ecpe degree

Hello, This year I am sitting my ECPE exam of the university of Mishigan. Where can I find useful practice on the Internet? I would be grateful if you could help me.. Eva Ch. I don't know about practice, but here's a very interesting website: http://www.hau.gr/hau/en/en_7_1_2....

### Probability (Pre-Calculus)

A class is given a list of eight study problems from which five will be part of an upcoming exam. If a given student knows how to solve six of these problems, find the probability that the student will be able to answer: (a) all five questions on the exam. (b) exactly eight ...

### math

Hi i have a math exam tomorrow and i wanted to get some extra practice so can you please find me free online math tests. Please do not give me "Proprofs" as one of the websites. I have already tried their website and it did not help :D

### Statistics: IQ Score (X) and Exam Score (Y)

Assuming that the regression equation for the relationship between IQ score and psychology exam score is Y' = 9+ 0.274X, what would you expect the psychology exam scores to be for the following individuals given their IQ exam scores? Individual Tim Tom Tina Tory IQ Score (X) ...

### A.P.World history

I need help finding the answers. If u know anything about it, please feel free to help. Why do westerners have issues with veiling? Why do many muslim women voulentarily practice veiling? Does the practice of Hijab only apply to women? How do people who practice veiling view ...

### algebra

Which situation would most likely be represented by a negative correlation: hours of practice and your golf score, hours of practice and the number of baskets you make in basketball, or hours of practice and the cost of a computer? Hint: In golf, the lower the score, the better.

### social studies

The esteemed Dr. Bookworm has just completed a study in which he found a +1.0 correlation between the number of cups of coffee his students drank right before class and the scores they earned on his final exam. This correlation means that: A. the less coffee the students drank...

### flower design practical exam 2

answers for penn foster exam # 030810RR

### Math

Professor Smith gives only a midterm exam and a final exam. The average is computed by taking 1/3 of the midterm exam score and 2/3 of the final exam score. To get a “C” or better students must have at least 70 semester average. If Laura scored only a 59 on the midterm, ...

### exam number 06041600

do you have the answers for this exam in steps to the math problems? i need help on them.

### Statistic

A training center claims that 75% of people taking national exam on achievement. In a sample of 90 people who took the exam only 39 have passed the exam. Use hypothesis testing to determine whether the training center claim is justified. Use 5% level of Significance

### early childhood currirulum

Penn foster Test exam questions exam number 405550

### poetry

1)exam #00779100 of penn foster i need help with the exam

### early childhood ed

Test exam questions..exam 405550

### math

In a class of 36 students 75% pass the exam. How many failed the exam

### Math

There are 100 fish species that I have to be able to identify in a lab exam. I only had enough time to recognize 50 species. On the exam, they will randomly select 25 of the 100 species for testing. What's the probability or chance that I would be able to score 50% in that ...

### Statistics-Concept Question

I have a stats exam tomorrow and I understand the material pretty well, but i sort of get confused. because my homework comes from a section, i know what formulas to use, but i took a practice test and i'm having a hard time identifying whether a problem is poisson or binomial...

### sta

1800 students took the scholarship exam and the resulting scores generated a mean of 40 and SD of 10. How many will pass the exam?

### trigonometry

tan60=2 tan30/1-tan^2 30 sqrt(3)=I'm confused of that 2 but i guess it means to multiply. again.. sqrt(3)= (2) sqrt(3)/3 / 1- sqrt(3)/2 ^2 now i don't know how to square tan . if u can show me in details i would appreciate it. this is just a practice problem and i want to ...

### math

you are given an exam with only 9 questions. if each question has 4 choices, how many different possible answers can you have for the entire exam?

### Reimbursement Methodologies

Jessica, I am aslo doing my exam but I am really having problems with number 4 in part B exam # 40976200 was wondering if you can help. Thanks

### busines ethics and starting a small business

I need exam answers to 25 questions that are on the the above college subject exam.

### Statistic

The professors at Wilfred Laurier University are required to submit their final exams to the registrar’s office 10 days before the end of the semester. The exam coordinator sampled 20 professors and recorded the number of days before the final exam that each submitted his or...

### language arts

Cleanliness what is it? why practice it? how do you practice it? what would it look like if..... reflections: action plan: plz help!!!!!!!!!!!!!

### statistic of behavioral science

for each of the following, identify the exam score that should lead to the better grade. In each case, explain your answer. A score of x=56, on an exam with the mean =50 and the standard deviation of 4; or a score of x=60 on an exam with the mean=50 and the standard deviation =20

### Chemistry

My final exam is coming up so I am doing study guides to help me practice. I would really appreciate any help that is given. 1. The hydronium ion concentration for a solution is determined to be 4.5 x 10^-7 M. What is the concentration of the hydroxide ion? 2. When a 5.00 mL ...

### Math

Exam scores were normal in MIS 200. Jason's exam score was 1.41 standard deviations above the mean. what percentile is he in?

### English

1. If anyone doesn't find me, I will die. 2. If no one finds me, I will die. (Are both grammatical?) 3. You have to practice playing the piano. 4. You have to practice to play the piano. 5. You have to practice the piano. (Which ones are correct from #3 to #5?)

### Health Care

Describe at least two advantages to having a solo practice. Describe at least two benefits of having a group practice. Are there any disadvantages to having a group practice? What are the disadvantages to having a solo practice? My first time, no clues. Please help!!

### Math

Jeremy uses the linear function G=12h+50 to represent the grade, G (in points out of 100), that he can earn on an exam as a function of h, the number of hours he spends studying for the exam. 1.) Identify the slope and y-intercept of Jeremy's function and explain what they ...

### physics

Spaceship I, which contains students taking a physics exam, approaches Earth with a speed of 0.640 c, while spaceship II, which contains instructors proctoring the exam, moves away from Earth at 0.280 c, as in Figure P26.27. If the instructors in spaceship II stop the exam ...

### physics

Spaceship I, which contains students taking a physics exam, approaches Earth with a speed of 0.640 c, while spaceship II, which contains instructors proctoring the exam, moves away from Earth at 0.280 c, as in Figure P26.27. If the instructors in spaceship II stop the exam ...