sorry . Can you please help me with this questions If you know?
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CHEMISTRY
Post a New Question Current Questions Homework Help: Chemistry Posted by Anonymous on Thursday, November 14, 2013 at 8:45pm. CONTINUE>>>>>>>>>>> The enthalpy changes for two different hydrogenation reactions of C2H2 are: C2H2+H2>C2H4 ... 
math(pleasehelp)
can someone please tell me the answer to these 2 questions for my study guide?? 7.find the quotient 5/20 divided by 1/7= A.1 1/4 B.4/5 C.5/196 D.4/21 9.Michael spends 3 hours cleaning his house,he spends equal amounts of time cleaning each room.If he spends 1 hour cleaning ... 
PennFoster
I do not need the answers because I do not want to cheat, I just need the questions for algabra1 exams 007027007032, algabra2 exams 007033007036, chemistry exams 007606007610, psychology exams 007097007101, and spanish exams 389801389812. Can anyone help I would greatly ... 
Ask question
If someone made the below statements to you, how would you explain that the statements are misconceptions? Include whether you think mos Americans believe these misconceptions, and why or why not *Asian Americans and Pacific Islanders are a model minority. *Asian Americans and... 
English
Posted by rfvv on Friday, July 2, 2010 at 1:00am. 1. What does she look like? She looks sad. 2. What is she like? She looks happy. 3. How does she look? She looks surprised. 4. What does her appearance look like? She looks upset. (Are the questions and answers grammatical?) ... 
Science
I have an assignment that wants me to describe the topographical factors that intensify the air pollution. What does it mean by topographical mean? I thought it was a type of map? Please help me :) Rindi: That post was an impersonation. It has been removed. Are you kidding me... 
Algebra
Please help! x+13 > 8 Solve the absolute value inequalities. Please, please , PLEASE! and thanks. 
social studies
can someone help me please with these two questions. 1. The utopian communities in America before 1860 were handicapped because they a. were ultimately overcrowded b. were forced to compete with free enterprise c. outlawed by congress d. generally embraced free love I think ... 
English
Can someone help me with these questions please. Bret Harte "Plain Language from Truthful James" 1. What was the major theme in this poem? 2. What can we learn from the characters in the poem about the people of this time period. 3. What lesson can be learned from the plot if ... 
Math
Can someone please help/show me how to Graph linear equations?? Directions~ Graph the following linear equations by plugging in values for x, solving for y, and keeping track of your x and yvalues in a table. You should determine at least three points on the line before you ... 
algebra
Homework Questions Attempts allowed Limits Points 7 Questions 3 No Time Limit 7 pts possible You're in the middle of taking this assessment. Resume Assessment Answer Back Next Question 6 of 7 (1 point) Jose invests money in two simple interest accounts. He invests twice as ... 
Literature
Please help with Beowulf Comprehension questions. I just need a general idea to write around, something impressive. 1. Why did Beowulf decide to free the Danes from Grendel? 2. Why did Beowulf fight Grendel with his bare hands? What does this reveal about his character? 3. Why... 
Algebra
Today I’m learning something new but I don’t know how to solve this. I have 2 questions about it but I feel as if, if someone explain/ show how I can complete the first one I’ll be fine with doing the second one in my own. How is a graph different from the parent ... 
Urgent!
Project: Data Analysis The following chart lists the average low, average high, record low, and record high temperatures for the month of April in Denver, Colorado. Day Average Low Average High Record Low Record High April 1 32°F 58°F 6°F 78°F April 2 32°F 58°F 3°F 79... 
Help Somebody please.
Project: Data Analysis The following chart lists the average low, average high, record low, and record high temperatures for the month of April in Denver, Colorado. Day Average Low Average High Record Low Record High April 1 32°F 58°F 6°F 78°F April 2 32°F 58°F 3°F 79... 
Country Reports
Sorry, I have another question about Iceland's government. :) It wants to know What is (are) thename of the house(s) of government in your country? and What are the names for representative to the national government? (senator, assembly member, ect.) Once again, I can't use ... 
Biology
Sorry for reposting but I really need help with this question and I've waited several hours. What is the trigone of the bladder bounded by? a) top of fundus and uretal orifices b) major and minor calyces c) orifices of ejaculatory ducts and urethra d) uretal and internal ... 
Physics again sorry
A solenoid of 200 loops of wire that cover a length of 0.1 m. The solenoid carries a current of 4.0 A. What is the strength of the magnetic field inside the solenoid? In this instance do I assume that this time r is 200 x 0.1? Or is it still just 0.1 and I ignore the 200? 
HISTORY!!
im sopposed to write a letter to the Canadian government and its 1872 about how i feel about the dominion lands act. id ont really know anything about it, or what i should put. something about the canadian mounted police as well. sorry this is all i know. 
Art
What principle of design is present in this image? 1. Symmetrical balance from shape usage 2. Radial balance from line usage 3. emphasis from color usage 4. Movement from texture usage. Sorry i don't know the picture don't send hate all i need is some help... 
Algebra please help!
I'm very confused with what I'm learning about right now. We are kind of talking about slopes, functions, graphs, etc. Today, my teacher taught about midpoint and distance, and did not explain very well at all. Would someone please explain to me how to find midpoint and ... 
PHYS 101
A block of mass m = 1.70kg is released from rest h = 0.485m from the surface of a table, at the top of a θ = 27.4° incline as shown in the figure below. I got a few of the questions a)The frictionless incline is fixed on a table of height H = 1.98m. Determine the ... 
Calculus (check my answers)
10) Use the information to evaluate and compare delta y and dy. y=2x^4, x=2 and delta x=dx=0.01 MY ANSWER: dy=.32 and delta y=.3224. Are they supposed to be negative, and how do I compare those in words? I don't even understand what I was supposed to do... 12) Find the ... 
chemistry
Materials sandwichsized plastic ziplock bag graduated cylinder paper cup rubber band measuring spoons vinegar baking soda twisttie (like the closure for a loaf of bread) Part 1: The Reaction 1.Use the paper cup during this part of the experiment. 2.Measure out 25.0 ... 
math
Note: You can get full credit for this problem by just answering the last question correctly. The initial questions are meant as hints towards the final answer and also allow you the opportunity to get partial credit. Consider the definite integral from pi/6 to pi/2 cos(z)/... 
MATH SUPER HELP!
I have 2 questions which measure correctly completes the statement. 1,127.5 milligrams = ? grams (1 point) which measure correctly completes the statement 627.532 L= / ml a sunflower was 1.8 meters high one week ago. in 7 days it grew 12 centimeters. find the current height of... 
Accounting
Problems: Please show all calculations. Claudette, Inc., provides warranties for many of its products. The January 1, 2014, balance of the Estimated Warranty Liability account was $38,500. Based on an analysis of warranty claims during the past several years, this year’s ... 
Science
A swimmer that pushes the water back with feet and arms what is the reaction force? What is the action force? What will happen to the movement of the swimmer as they push the water back? If the swimmer exerts 5 n of force on the water how much force does the water exert back ... 
Math
Sorry! I don't get this one either.. limit of (f(x+Δx)f(x)) / Δ x with Δ x > 0 f(x)= 1/(x+3) My work so far before I got stuck... 1/((x+Δx)+3) = 1/(x+Δx+3)  1/x+3 = 1(x+3)/(x+Δx+3)(x+3)  1(x+Δx+3)/(x+3)(x+Δx+3) =Δx / (x+Δ... 
English
1. In 1963, how many percent of the skaters finished the race? 2. In 1963, how many percents of the skaters finished the race? 3. In 1963, how much percent of the skaters finished the race? 4. Only one percent of the skaters finished the race.(answer... 
math
How many tokens of “the“ did Adam produce at stage 1?______22_______ How many tokens, in general, did Adam produce at stage 1? _7437__________ What percentage of Adam's tokens did “the“ make up at stage 1? Hi, i figured out how to calculate the first two questions but ... 
Environmental Science
Research Paper I need to write a research paper on coral reefs. i need to compose a research paper that deals with coral reefs and addresses enough of the questions below in order to meet the minimum page requirements for the paper (34 double spaced pages) Explain what a ... 
Calculus
I am sorry. I am really struggling with limits. I am not sure of an answer for this problem either: Show an example that the limit as x goes to a f(x) goes to [f(x)+g(x)] may exist even though neither the limit as x goes to a f(x) approaches f(x) or g(x) exist. 
math
Sorry I posted this question earlier with a error. Can anyone help me solve this now? Can someone help me answer this? If a < 5 the define integral [a, 4] 2.4e^(1.4x)dx = 44 Find the value a Define integral = integral sign a = lower limit 5 = upper limit 
Language arts
What reading roles are there to choose from? Is word watcher one of them? Lol Sorry I never pay attention to that stuff and I probably should. If word watcher is one, I think I'm going to do that one. 
physics
tank of water with L=6m, W=3m, H=4m. 1) Find the force on the bottom of the tank from water. (ignore atmosphere pressure). 2) If the door to the tank is 1.5m by 1.5m and it is 2.25m (center bottom)from the edge of the tank, what is the force on the door and the position of ... 
Math
I am very sorry but I was wrong with the problem. The math problem is: 9 / (3.62.1) Thank you Anonymus for your answer but I want the problem that I wrote above. If you help me again pleaseeeeeeeee. I don't know how to resolve this. Thanks again. 
English
Please check for any errors and correct them for me. Enclosed is the information you requested concerning our float trips down the Colorado River in the Grand Canyon. All departure dates and prices for the various trips are listed in our booklet. At this time the trips leaving... 
Math(Geometry)
In my geometry book I am really stumped on these question.This is what it says to do, "Find a pattern for each sequence. Use the pattern to show the next two terms."And here are th questions I am stuck on with the #'s. 7.O,T,T,F,F,S,S,E,... 8.J,F,M,A,M,... 13.George,John,... 
Spanish
Coud someone please check my answers to the questions? 1.¿Qué apagas cuando tienes frío? Apago la ventiladora cuando tengo frío. 2.¿Dónde están las cosas muy frías en tu cocina? Están en el refrigerador. 3.¿Qué usa tu madre para cocinar? Ella usa el horno y el ... 
Spanish 7th grade Please check
We are doing double verbs and leaving the second one infinitive form and also present participles with cantar becoming cantandoCould you please check these questions I need to answer? Thank you 1.¿Sabe tu padre hablar inglés? Sí, mi padre sabe español. 2. ¿Cuándo vas a ... 
Phyics
I have a few questions that I need help with please. Show by algebraic reasoning that your gravitational acceleration toward an object of mass M a distance d away is a = GM/d2 and therefore doesn’t depend on your mass. (I don't understand this question) What does it mean to ... 
gov't campaigns
in debates what are some things that help/hurt either president candidate? i think by not answering questions and when president candidates look like they don't know what they are talking about. in the overall presidential campaigh, what are some things that can help or hurt ... 
chem
Will someone help me with this problem, please? Calculate the mass in grams of 1.20*10^24 molecules of CO2. Well, convert it to moles of CO2. number moles= 1.2*1024/avagnumber Now, you take the molecular mass of CO2 (12 + 2*16) and multiply that by the number of moles. I got 8... 
DrBob222Questions
Can you please check these for me. Thank you very much in return:) For Al2(SO4)3 you gave me Aluminum ion and Sulfate ion. These are the rest: CaCl2 = Calcium ion and Chlorite ion Na2O = Sodium ion and Oxygen ion AgCl = silver ion and chlorine ion Na3PO4 = Sodium ion and ... 
chem
I am having lots of trouble with these questions: Classify each of the following reactions in as many ways as possible. (Select all that apply.) a)2 Rb(s) + Br2(g) 2 RbBr(s) you can select: acidbase doubledisplacement gas evolution oxidationreduction precipitation ... 
Physics
The prong of a tuning fork moves back and forth when it is set into vibration. The distance the prong moves between its extreme positions is 2.28 mm. If the frequency of the tuning fork is 440.6 Hz, what are the maximum velocity and the maximum acceleration of the prong? ... 
physics As
Please help and do it step by step all parts of questions and use: T = time(s) I=current (amps) Q=net charge on object (Coulombs) N=no electrons (and write if added or removed from object and how) E=elementary charge A piece of fuse wire has a diameter of 0.22mm and carries a ... 
As physics
Please help and do it step by step all parts of questions and use: T = time(s) I=current (amps) Q=net charge on object (Coulombs) N=no electrons (and write if added or removed from object and how) E=elementary charge A piece of fuse wire has a diameter of 0.22mm and carries a ... 
art
what education is needed to be an art teacher? Ex: art history, extra (sorry I don't know anymore than art history) 
Math
Please help with the following questions: 1. write 12 million in scientific notation 2. Write 17,600 in scientific notation 3. write 1.2 * 10 to the fourth power in standard form 4. write 5 * 10 to the sixth power in standard form 
Chemistry
Ermms just cant get my head around this question kinda bugging me :( Solid Sodium Hydrogen Carbonate dissolving in water i know its a dissociation reaction but i don't really have an idea where to split the compound. sorry about the repost, im new to this site and i aint ... 
SS sorry I have a lot of it today
France lost which of its North African colonies to a violent revolution? A. Algeria *** B. Egypt C. Morocco D. Tunisia What is one major obstacle to development in some African nations? the effectiveness of peacekeeping troops the presence of NGO's lack of stable governments... 
sorry *Mr. Pursley
Mr. Pursley 
Math; Solve by Graphing
Which description best describes the solution to the following system of equations? y = −x + 4 y = 3x + 3 Line y = −x + 4 intersects the line y = 3x + 3. Lines y = −x + 4 and y = 3x + 3 intersect the xaxis. Lines y = −x + 4 and y = 3x + 3 intersect the... 
Art
Americans chose willow strips to make baskets because they were easy to blend and Aeast to find •• Brare and valuable Cmulticolored Dwaterproof Correct me plz Okay I'm really sorry for posting this question again but I'm really sure it's A because willow grows in ... 
Econ 220
Suppose we have the following market supply and demand schedules for bicycles: Price Quantity Demanded Quantity Supplied $100 70 30 $200 60 40 $300 50 50 $400 40 60 $500 30 70 $600 20 80 a. Plot the supply curve and the demand curve for bicycles. (Note please don’t worry ... 
english
The following questions have sentences with blanks. Choose the answer option which will correctly rill the blank 1) You can borrow my car the end of the month A) until B) by C) in D) for 2) Most scholars consider 1887 to be the beginning of industrialization wine and brandy ... 
Financial Acct. (again) sorry
Hi again, I was wondering if anyone might know how to check my answers to these questions on accounting...thanks!! 1. The current portion of longterm debt should a. not be separated from the longterm portion of debt. b. be paid immediately. c. be reclassified as a current ... 
Accounting
Identify at least three external users of accounting information and indicate two questions they might seek to answer through their use of accounting information I just need help on indicate 2 questions they might seek to answer through their use of accounting information 
AVID (elective)
Hi! I have 2 questions. Teacher told me that I have to answer each question by an essay. But please just give me only 4 sentences if that's alright. 1. How does booker t. washington ideas in UP in slavery and avid's mission similar? 2. What are the similar ways in which avid ... 
please help physics!!
Two toy ducks attached to each other by a string, are being pulled by a child. The front duck is m1= 5.0 kg and the back duck is m2= 2.0 kg. The happy guy pulls them with a force of 10 N and friction exists. The toys are moving with constant velocity. A) if the coefficient of ... 
overview of teaching techniques
which technique is used after a student gives a wrong answer and the teacher continues to aim questions at that student? (a)redirecting (b)probing(my answer) (c)inquiring (d)diverting which of the following guidelines for demonstrations is good advice to follow? (a)after a ... 
classroom instruction
• Create a 4 to 6slide Microsoft® PowerPoint® presentation of the content for the learning packet by addressing the following points: o Choose a reliable Internet site and review the content to ensure that it is appropriate for the age group and the social studies class... 
Math
Use the stermandlead plot below to answer questions 13 Stem Leaf 5 4 5 6 0 6 9 7 2 3 4 5 5 8 1 2 8 9 9 5 6 5/4= 54 1. What is the range of data? A. 40*** B. 42 C. 54 D. 96 2. What is the median of the data? A. 64.5 B. 72.5 C. 74.5*** D. 75 3. What is the mode of the data? A... 
Physical Science
Based on a data table of their preliminary observations, which is shown below, complete the final column entitled: “Number of Valence Electrons” and then answer the questions that follow. Element Name Symbol Group Number Alkalininium A 1 Earthium E 2 Redonkulinium R 3 ... 
chemistry
How many electrons are transferred in the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water? i'm not sure if iposted this already... sorry if i did :) Fe^+2 ==> Fe^+3 + e 2e + 2H^+ + H2O2 ==> 2H2O Multiply equation 1 by ... 
college philosophy
According to Plato what makes something have the state of being good? When something happens that someone wanted to happen, it may not necessarily be good. How does plato feel about that? sorry the way i worded it before it was wierd so i changed it...thanks 
AP Statistics
Hi, we just started density curves in AP Stats, and I am a little confused about one of the concepts. It keeps saying that a density curve has to have an area equal to 1 below it... 1 of what? I don't understand how you figure out if the area of your curve is 1, or what unit ... 
Calc I
Yes I was trying to find the range y = (x^2 4)/(x^2  x 12) ok using 2(4 +/ sqrt(15) ) sorry I forgot the minus in the derivitive but ya that makes sense but however I need three critical values that only gives me graph it and you'll see there are three how do I find the ... 
chemistry
What is the formula equation and balance it and also give the sum coefficient of: 1.sulfur dioxide(g)+oxygen(g)delta arrow (sorry i can't draw it here) sulfur trioxide 2. nitrogen dioxide(g)+dihydrogen monoxygen(l) nitric acid(g)+nitrogen monoxide 
Probability!!! PLEASE help!!
A survey of Chaicago sports fans asked them 3 questions about which they prefer. Each fan must give exactly 1 answer to each question. Given a choice between the Cubs and White SOx, 40% chose cubs. Between the Bulls and Blackhawks, 57% chose bulls. between wildcats and maroons... 
Physics
i have been asking physics questions on this and some people give me the formula, i'm getting the correct answers..please can the same people help me on this that helped me before.. A child rides a bicycle in a circular path with a radius of 2.0 m. The tangential speed of the ... 
math(apology)
Sorry[samantha,jason,marybeth,john,tyrik,aaron,katie,and tiffany]i will send you some work to show you i tryed] Whoever you are, Your IP address is being recorded. Stop the impersonation of a teacher now, or you will be banned. We just don't have time for disruptions or games... 
The lord of the fliesEnglish
Please help me! Its due tommorow! 1) Why is piggy's fall emphasized? 2)How does the author discribe Ralphs flight accross the island? 3)What does Ralph say to the twins when they refuse to help him? Thanks so much! :D You've already received help on these questions. http://www... 
Calorimetry Chemistry
Please help with these questions. Thanks Consider the reaction C12H22O11(s)+ 12O2(g)>12CO2(g)+11H2O(l) < in which 10.0 g of sucrose,C12H22O11 , was burned in a bomb calorimeter with a heat capacity of 7.50 kJ/ degrees celsius. The temperature increase was found to be... 
language arts
How can words or stories connect generations? How can interactions between generations create conflict? Can words resolve these conflicts? What can each generation teach the other? Why might is sometimes be difficult for two generations to communicate? Why might the words of ... 
math olympiad
how to i solve this problem asked previously unsatisfied with ans. Jack and Jill copared results on math test. Jack had 40 correct ans & Jill had 50 correct ans. There were 32 questions they both had correct and 6 they both had wrong. How do I determine how many questions were... 
Physics Phase Constant
..im really stuck on this. can someone please explain?  Figure A [[which i tried to recreate below]] is a partial graph of the position function x(t) for a simple harmonic oscillator with an angular frequency of 1.1 rad/s. [a].....x(cm)....... ........5... 
science (heeeeelp)
Heloooo? can somebody plz answer my questions below? I need help! You'll learn far more if you research the questions and their answers yourself. We don't give answers on this forum. If you want to post your own answers, we'll be glad to critique them. http://www.madsci.org/... 
Science
which would be the most likely forms that you would consider using within the next year? What personal advantages or disadvantages would prompt your decision? Thank you for using the Jiskha Homework Help Forum BUT your question is unclear. When you refer to "forms" to what ... 
Math
How do you write at least 6 fractions from the below ingredients list that serves 4 people. 1 cup allpurpose flour 2 eggs 1/2 cup milk 1/2 cup water 1/4 teaspoon salt 2 tablespoons butter , melted How do I make these fractions? PLEASE PLEASE PLEASE PLEASE PLEASE! HELP ME! 
spanish/check please
Underline the best word. 1Quiero viajar mucho y (conocer/ saber)los paises del mundo. 2(Sé/Conozco)un poco de espanol. 3No puedo decir que(Sé/ conozco) a muchos espanoles,pero si tengo algunos amigos que viven en Espana. 4(Conozco/Sé) muy bien a Juan Alberto. 5El vive ... 
Science
1.Which of the following is a good study habit? A.maintaining a positive attitude ** B.waiting until the last minute to start on an assignment C.listening to the television while studying D.studying when you are tired 2. Your friend John complains about his poor grades. You go... 
Chemistry
1.) A vapor volume of 1.17 L forms when a sample of liquid CH3CN absorbs 1.00 KJ of heat at its normal boiling point (81.1 C and 1 atm). What is the heat of vaporization in KJ per moles of CH3CN? 2.) The vapor pressure of water at 25 C is 23.76 torr. If a 1.25 g sample of H20 ... 
math
select ten (10) states and calculate the mean and standard deviation for average insurance costs. Next, calculate the mean and standard deviation for average insurance costs for all 51 states. Compare and contrast the means and standard deviations for the ten (10) states you ... 
psy need some info please
Need some reading information to help me answer these questions. below: positive psychology as being aware that humans are both creatures and creators of their personal and social worlds. What does this statement mean to you? Do you agree that humans are creatures as well as ... 
High School Geometry
Given: ΔTSP, TS = SP = 10cm, TP = 12cm. Find: Three altitudes of ΔTSP. for this one I only got one of the altitudes 2 √61 can you give me the other two and tell me if this one is right, sorry I am in a rush 
Geometry
A plane is is flying 225 mph heading S25°W. The wind is blowing S80°E at 60 mph. 11. What is the bearing of the plane? 12. What is the smallest angle of the triangle? 13. What is the largest angle of the triangle? 14. What is the remaining angle of the triangle? 15. What is ... 
3 Questions
I have three True/False questions. If they are false, please explain why. It is due Monday. 1. A shift in supply causes the price of a good to rise. The shift must have been an increase in supply. I think this is True. 2. The price of good X rises. This causes an increase in ... 
Chemistry
Hi DrBob, Sorry about that, I wasn't very clear! Can someone please help me complete these calculations for my lab; I am having some trouble. A. Standardization of Na2S2O3 Mass of KIO3 in 100mL = 0.09600g Calculate Molarity of KIO3= ? Please check: 0.09600g/(214.0g/mol)=4.... 
Math Binomial theorem
I'm preparing for a test and one of the questions in my text is as follows: In a trivia contest,Sam has drawn a topic he knows nothing about, so he makes random guesses for the 10 T/F questions. Use the binomial theorem to help find a)the number of ways Sam can answer the test... 
social studies
Interview a) Interview a teacher in the elementary grades regarding the teacher's social studies instruction. Include at least eight questions. b) Create your own questions such as: i) Do you use a textbook? ii) What do you think of the standards for social studies? iii) How ... 
human bahavior in organization.. please help me
is anyone can help me to get the correct answers for the questions below.please help me thank you 1.How effectively your staff communicates and relates to each other can tell you how much they care for their work and the people around them? my answrs: To be able to see them in... 
I have a few science Questions I need checked, Plz
Hi Guys, so, I only have 2 questions, But, I'm a little confused on all of them, could someone check for me One of the ways humans can preserve biodiversity Is habitat destruction habitat preservation*** habitat fragmentation poaching A country comissioner wants to reduce the ... 
English Please Help
In this discussion, you will post issues related to competition and conflict. Refer to the texts in this section, other text you have read, and your personal experience and knowledge to support your ideas. Begin your discussion by addressing the following questions: How does ... 
Physics
A crazed armadillo with a mass of 60kg stands at the center of a rope which was initially strung horizontally between two poles 50m apart. Its weight causes the rope to sag 1.20m. What is the tension in the rope Solution: 2Tsin(angle)  mg = 0 Tan1() = 1.2/25 = 2.75° 2Tsin(2... 
Math Please Help
The graph above shows the number of students receiving A's in each grade at Bridgeport Middle School. Which statement is true? A: The scale on the first graph does not distort the lengths of the bars. B: The second graph shows greater changes in the number of A's than the ... 
Chemistry
Exhibit 81 For the following questions, consider the equation below. Zinc will react with a solution of hydrochloric acid to produce hydrogen gas: Zn(s) + 2 HCl(aq) ® ZnCl2(s) + H2(g) Refer to Exhibit 81. How many moles of hydrochloric acid react with one mole of zinc? 1. ... 
Probaility
The rates of on time flights for commercial jets are continuously tracked by the US Department of Transportation. Recently, Southwest Air had the best rate of 80% of its flight time on time. A test is conducted by randomly selecting 15 southwest flights and observing whether ...