Questions Asked on
September 7, 2013

  1. tyndall

    1. In the middle of the page, draw two vertical lines an inch long, an inch apart, and that are parallel to each other. 2. About a half inch below the lines, draw a half-inch horizontal line that is centered between the lines. 3. Draw a line from the

    asked by ferdinand
  2. chemistry

    Mno4- + So3-2 = Mno2 + sO4-2 (OH-) solve this redox reaction and give me the method also

    asked by kiara
  3. Chemistry

    Upon decomposition, one sample of magnesium fluoride produced 1.65kg of magnesium and 2.58kg of fluorine. A second sample produced 1.38kg of magnesium. How much fluorine (in grams) did the second sample produce?

    asked by Anonymous
  4. Chemistry

    The normality of 0.3 M phosphorus acid (H3PO3) is.......

    asked by Aman
  5. AP Chemistry

    For the reaction 2C6H6+15O2 =12CO2+6H2O, what is the maximum amount of CO2 which could be formed from 5.12 g of C6H6 and 12.28 g of O2?

    asked by Anonymous
  6. Geometry

    A 2ft. vertical post casts a 16in. shadow at the same time a nearby cell phone tower casts a 120ft. shadow. How tall is the cell phone tower?

    asked by Ronnie
  7. history

    If Catal huyuk had been built near a major river system, how might life have been different? Check my answer. Floods, fire, drought and other natural disasters could destroy a village. Diseases such as malaria could spread easily among people living

    asked by aya
  8. stat

    The general population (Population 2) has a mean of 30 and a standard deviation of 5, and the cutoff Z score for significance in a study involving one participant is 1.96. If the raw score obtained by the participant is 45, what decisions should be made

    asked by Jaky
  9. Physics

    As soon as a traffic light turns green, a car speeds up from rest to 45.0 mi/h with constant acceleration 8.50 mi/h/s. In the adjoining bike lane, a cyclist speeds up from rest to 15.0 mi/h with constant acceleration 12.50 mi/h/s. Each vehicle maintains

    asked by Anonymous
  10. Geography (Ms. Sue)

    How might the climate of an area be affected by global warming? Which of the five themes apply to this situation?

    asked by Anonymous
  11. history

    Describe the physical surroundings of Catal Huyuk. Check my answer The roofs were made of woven reeds and mud and were connected to one another like a honeycomb . Each dwelling contained an open hearth an oven in the wall and clearly defined sleeping area.

    asked by Anonymous
  12. Physcis

    a black of mass 92 kg and volume 0.031 lies at the bottom of the sea how much force is needed to lift it ? take 1.03*10^3 kg/m as the density of sea water

    asked by eman
  13. Geography (Ms. Sue)

    Why are oil and natural gas important to highly-industrialized nations? My answer: Oil and natural gas are important to highly-industrialized nations because these are only a few of the many resources which give both countries the means to continue to

    asked by Anonymous
  14. Chemistry stochimetry2

    The volume strength of 1.5 N H2O2 is.......

    asked by Aman
  15. physics

    A canal lock gate is 20m wide and 10m deep. calculate the thrust acting on it assume that the water in the canal is in level with the top of the gate. density of water is 1000kg/m^3

    asked by eman
  16. Chemistry

    In the explosion of a hydrogen-filled balloon, 0.80g of hydrogen reacted with 6.4g of oxygen. How many grams of water vapor are formed? (Water vapor is the only product.) Express your answer using two significant figures.

    asked by Anonymous
  17. math

    Four key marketing decision variables are price (P), advertising (A), transportation (T), and product quality (Q), Consumer demand (D) is influenced by these variables. The simpiest model for decribing demand in terms of these variables is: D = k - pP + aA

    asked by Rachael
  18. Geography (Ms. Sue)

    What makes the United States and Canada leading industrial nations? My answer: Both countries are leading agricultural and industrial nations because of their wealth of resources. The United States and Canada possess ample water resources, a immense amount

    asked by Anonymous
  19. Geography (Ms. Sue)

    Why doesn't all of Alaska have cold, snowy winters? My answer: All of Alaska does not have cold, snowy winters because not every part of Alaska possess tundra, subarctic, and humid continental climates. In fact, the Pacific coast from northern California

    asked by Anonymous
  20. physics

    Vector A ⃗ {\rm \vec A} points in the negative x x direction. Vector B ⃗ {\rm \vec B} points at an angle of 35.0 ∘ ^\circ above the positive x x axis. Vector C ⃗ {\rm \vec C} has a magnitude of 19m m and points in a direction 37.0 ∘ ^\circ below

    asked by Anonymous
  21. Chemistry

    Calculate the theoretical mass percent of oxygen in KClO3. here is the my mass percentage of 02 25gKCl03/30.0gKCl03=0.61%02.

    asked by kelly
  22. Geography (Ms. Sue)

    In developing their city, how did the people of Montreal solve the problems of a severe climate? Which of the five themes apply to this situation?

    asked by Anonymous
  23. Physics

    Please help me learn how to do this problem, step by step please. Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 4.1 km/s while moving

    asked by Savannah
  24. Physics

    The earth moves around the sun in a nearly circular orbit of radius 1.50 x 1011 m. During the three summer months (an elapsed time of 7.89 x 106 s), the earth moves one-fourth of the distance around the sun. (a) What is the average speed of the earth? (b)

    asked by WR
  25. Physics

    Suppose that the gravitational acceleration on a certain planet is only 3.1 m/s2. A space explorer standing on this planet throws a ball straight upward with an initial velocity of 35 m/s a) What is the velocity of the ball 4 seconds after it is thrown?

    asked by Heather
  26. Chemistry

    If 23.7g of C8H18 are combusted, what mass of water will be produced?

    asked by Tanisha
  27. chemistry

    when ch3cooh, nahco3 and as2o3 is heated ,what product will be formed?

    asked by subhasis
  28. Physics

    In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that shown in Figure 3.10 and has a range of 24 m. Suppose the launch speed is doubled, and the projectile is fired at the same

    asked by WR
  29. Chemistry

    Two elements, R and Q, combine to form two binary compounds. In the first compound, 9.50 g of R combines with 3.00 g of Q. In the second compound, 7.00 g of R combines with 4.50 g of Q. Show that these data are in accord with the law of multiple

    asked by Jackie
  30. Geography (Ms. Sue)

    Why don't central and southern California have a marine west coast climate?

    asked by Anonymous
  31. Algebra, HELP IM CLUELESS

    Eureka is 16 years younger than Renton. In 3 years Renton will be twice as old as Eureka. How old are they now? Eureka's Age: Renton's Age:

    asked by Grant
  32. Geography (Ms. Sue)

    1). In what type of climate would you expect to find permafrost? 2). What type of vegetation covers most of Canada? My answers: 1). You would expect to find permafrost in a tundra and subarctic climate. 2). Tundra and coniferous forests are the types of

    asked by Anonymous
  33. Ancient History

    Describe the physical surroundings of Catal Huyuk

    asked by Anonymous
  34. Chemistry

    Upon decomposition, one sample of magnesium fluoride produced 1.65kg of magnesium and 2.58kg of fluorine. A second sample produced 1.38kg of magnesium. How much fluorine (in grams) did the second sample produce?

    asked by Anonymous
  35. ECON

    For your twenty-first birthday, your grandfather offers you a gift of $1000 today. However you have the choice of waiting 3 years and receiving $1500 or waiting 5 years and receiving $3000. If your money grows at a rate of 8 percent compounded annually,

    asked by R
  36. Math - Algebra

    All the jelly beans in a jar are blue, green, red, white, or yellow. There are b blue jellybeans in the jar, as well as 3/4 b green jelly beans, 5/8 b red jellybeans, 9/16 b white jellybeans, and 7/16 b yellow jellybeans. If there are a total of 216

    asked by Venus
  37. social

    Explain how the village of Catal huyuk was Constructed.

    asked by aya
  38. Chemistry

    The density of methanol is .7918 g/ml/ How many grams of methanol do I have to add to 35.0ml of water to make a solution containing 25% methanol?

    asked by DD
  39. World History ASAP

    What people created the first mesopotamian civilization? ANSWER: Sumerians What did they contribute to early civilization? I don't get this answer ://

    asked by unknown
  40. Math Homework, Help

    Aaron is 21 years younger than Ryan. In 5 years Ryan will be twice as old as Aaron. How old are they now?

    asked by Byron
  41. science

    An insect inside a bus flies from the back toward the front at 2 m/a. The bus is moving in a straight line at 2m/a. What is the speed of the insect?

    asked by Ellie
  42. Math

    How do you find the distance and midpoint between two points in the coordinate plane?

    asked by Anonymous
  43. Chemistry

    Identify the predominant intermolecular forces between molecules of each of the following compounds: a. CCl4 b. HF c. SO2 d. CH3COOH e. HI

    asked by Rachel
  44. World History

    What were the main powers and responsibilities of a Sumerian king?

    asked by unknown
  45. Math, HELP!! PLEASE! IMMEDIATELY!

    After a 25% reduction, you purchase a television for $607.5. What was the television's price before the reduction? (a) Write an equation to model the problem. Let x represent the price before the reduction. (b) Solve the equation to find the price before

    asked by Frankie
  46. Physics

    If a person can jump a maximum horizontal distance (by using a 45° projection angle) of 2.07 m on Earth, what would be his maximum range on the Moon, where the free-fall acceleration is g/6 and g = 9.80 m/s2?

    asked by Emily
  47. Writing

    Can you proofread my essay? Life in the Fast Lane Have you ever changed so much in life that you couldn’t possibly bare it? Well, that person is called a dynamic character, someone who changes throughout a drama. In the drama, “The Crucible,” by

    asked by Allie
  48. physics

    use bohr's quantization rule to calculate the energy levels of a hermonic oscillator, for which the energy is (p^2/2m) + (mw^2r^2/2) i.e. force is mw^2y. Restrict yourself to circular orbits.

    asked by kalyan
  49. aiu

    Analysis techniques include the following: • Comparative financial statements • Trend analysis • Ratio analysis • Percentage analysis Presentation of 5–10 PowerPoint slides that includes the following: • At least 3 slides relevant to the

    asked by mary
  50. Math Homework, Help!!!!

    A marble statue is 39 years old and a limestone statue is 97 years old. In how many years will the limestone statue be twice as old as the marble statue?

    asked by Casey
  51. Sentences and Paragraph 2

    Your favorite cousin has moved to your town and is looking for a job. Her previous experiences are working as a cashier and sales clerk at two department stores. You know she plans to apply at similar stores in your town. But you also know she is a perfect

    asked by Diana
  52. WR

    A tennis ball is struck and departs from the racket horizontally with a speed of 27.4 m/s. The ball hits the court at a horizontal distance of 20.0 from the racket. How far above the court is the tennis ball when it leaves the racket?

    asked by WR
  53. Quantum physics

    If you Fourier sample the state 122√(|000>−|001>+|010>−|011>+|100>−|101>+|110>−|111>), which of the following states can be the outcome of your measurement? Select all that apply. 1. |000> 2. |001> 3. |010> 4. |011> 5. |100> 6. |101> 7. |110> 8.

    asked by SS01
  54. mAtH

    The 23rd term in a certain geometric sequence is 16 and the 28th term in the sequence is 24. What is the 43rd term? It is not 48.

    asked by Speedo
  55. Physics

    A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 660 m/s. The gun is pointed directly at the center of the bull's-eye, but the bullet strikes the target 0.029 m below the center. What is the horizontal distance between the end

    asked by WR
  56. english

    Q.Each line contains a mistake and error>Find error and replace it with suitable words>>> Bernard Shaw or Chesterton were known to having jokes at each other‟s expense. Once they faces one other in a corridor. Chesterton stood her ground and firmly said,

    asked by satyajit(assassin)
  57. physics

    according to classical model of the H-atom,an electron moving in a circular orbit of 0.053 nm around the proton fixed at the center would be unstable and the electron should ultimately collapse to the proton. Estimate how long it would take for the

    asked by kalyan
  58. Physics

    escalator that leads down into a subway station has a length of 27.0 m and a speed of 1.7 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on this escalator. The local record time for this trick is 11 s.

    asked by Donna
  59. Algebra, HELP! PLEASE!

    In triangle ABC, angle B is four times as large as angle A. The measure of angle C is 12∘ more than that of angle A. Find the measures of the angles.

    asked by Kate
  60. Geography (Ms. Sue)

    How id the presence of north-to-south flowing rivers in the United States affect its development?

    asked by Anonymous
  61. physics

    A 4.10 kg object on a horizontal frictionless surface is attached to a spring with spring constant 840 N/m. The object is displaced from equilibrium 50.0 cm horizontally (in the + direction) and given an initial velocity of 9.9 m/s back toward the

    asked by Anonymous
  62. Algebra, 0110 HELP!

    Including 5% sales tax, an inn charges $210.00 per night. Find the nightly cost at the inn before tax is added. (a) Write an equation to model the problem. Let x represent the nightly cost before tax. (b) Solve the equation to find nightly cost before tax.

    asked by Derek
  63. Math

    he freshman class at a major university contains 5160 students. This was a 20% increase over the size of the freshman class the year before. What was the size of last year's freshman class?

    asked by Eryn
  64. Physics

    A volleyball is spiked so that it has an initial velocity of 16.6 m/s directed downward at an angle of 55.2 ° below the horizontal. What is the horizontal component of the ball's velocity when the opposing player fields the ball?

    asked by WR
  65. Physics

    A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +6.6 m/s and ax = +2.0 m/s2. The y components of the puck's initial velocity and

    asked by WR
  66. Physics

    A rocket is fired at a speed of 50.0 m/s from ground level, at an angle of 46.0 ° above the horizontal. The rocket is fired toward an 18.7-m high wall, which is located 23.0 m away. The rocket attains its launch speed in a negligibly short period of time,

    asked by WR
  67. Physics

    A soccer player kicks the ball toward a goal that is 27.0 m in front of him. The ball leaves his foot at a speed of 16.7 m/s and an angle of 36.0 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.

    asked by WR
  68. Geography (Ms. Sue)

    How does location affect climate?

    asked by Anonymous
  69. history

    If Catal huyuk had been built near s major river system, how might life have been different?

    asked by aya
  70. Quantum physics

    1] Given qubit 1 in the state 35|0>+45|1> and qubit 2 in the state 12√|0>+i2√|1>, what is the state of the composite system? in form of a│00> + b│01> + c│10> + d│11> find a b c d. 2] Which of the following states is entangled? a) |++> b)

    asked by SS01
  71. english

    everyday their are more and more dirty dishes to wash-truly a(n) task. a=epicurean b=jovial c=sisphean d=gslvanized its d

    asked by ssss
  72. Quantum physics

    1] Let |ψ⟩=(2+i/3)|0>−(2/3)|1>. If we measure |ψ⟩ in the basis |u⟩=(1+i/2)|0>+(1−i/2)|1>, |u⊥>=1−i/2|0>−1+i/2|1>, what is the probability our outcome is |u>? 2]Suppose we are trying to solve Simon's problem with n=4. We ran 4 iterations

    asked by SS01
  73. Analytical chemistry

    I did the next problem, i don't have the results for it and i just want to know if i calculated the mass for Fe2O3 the right? A sample is a mixture of iron oxides (Fe2O3 and FeOOH). It's known that at 200°C this reaction occurs: 2FeOOH(s)-> Fe2O3(s) +

    asked by Gloria
  74. physics

    Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 37 km away, 24° north of west, and the second team as 34 km away, 38° east of north. When the

    asked by Anonymous
  75. Chemistry

    A glass can be filled slightly above the rim with water. Explain why the water does not overflow.

    asked by Rachel
  76. math

    Show me how to write 201046 in standard form and in expanded notation

    asked by katrina prado
  77. Math - Number Properties

    How many positive integers less than 100 are equal to the product of a multiple of 6 and an odd number greater than 1?

    asked by Venus
  78. ENGLISH

    english is not my firs language , i need help to correct this paragraph . please.(only answer ) question As the nurse being told this, what are your ethical and legal obligations regarding the medication error? Answer . My legal and ethical obligations

    asked by sham
  79. chemistry assignment

    how can i find the standard rf values of food dyes ?

    asked by QY
  80. Physics

    In diving to a depth of 979 m, an elephant seal also moves 104 m due east of his starting point. What is the magnitude of the seal's displacement?

    asked by WR
  81. physics

    determine the pressure of a 20 lb force is applied to an area of 10 inch squared

    asked by charles
  82. math

    Betsy is making a flag. she can choose 3 colors out of red, white, blue, and yellow. How many choices does she have?

    asked by Anonymous
  83. Math!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    In a project, Mr Tung's daily wage was $100 more than Mr Pang's. Although Mr Tung worked 3 days less than Mr Pang, both of them earned $3600. Find the number of days Mr Tung worked in the project.

    asked by Nicole
  84. college essay

    Im writing a college essay and Im not sure how to edit the first paragraph My existence thus far has been a musical performance. The world is my stage, the platform on which I can express myself creatively. My life is the reputable melody that I play from

    asked by chhristine
  85. GDP geogrsphy

    What are some of the factors that can cause a country’s Gross Domestic Product (GDP) per person to change? kathi anderson forever never lasts

    asked by rockrboiluvr14
  86. matla

      4.6 g of an oxide of nitrogen contains 3.2 g of oxygen. Calculate the empirical formula of the compound.

    asked by kevin
  87. Intermediate Algebra

    name the type of polynomial and give its degree for 7x to the 3rd power + 6x to the 2nd power -2=

    asked by Kimberly
  88. Intermediate Algebra

    add or subtract the following polynomials as indicated (5.9x to the 3rd power+3.4x to the 2nd power - 7)-92.9x to the 3rd power -9.6x to the 2nd power +3)

    asked by Kimberly
  89. Sociology

    I need to break a folkway and write an essay on it - any ideas?

    asked by Sara
  90. Physics

    During takeoff, an airplane climbs with a speed of 110 m/s at an angle of 44 degrees above the horizontal. The speed and direction of the airplane constitute a vector quantity known as the velocity. The sun is shining directly overhead. How fast is the

    asked by Anonymous
  91. math

    powers and exponents

    asked by ana
  92. biology

    Pseudoscience and nonscience differ in that:

    asked by Anonymous
  93. humanities

    Do you know GATEWAYS TO WORLD LITERATURE THE ANCIENT WORLD THROUGH THE EARLY MODERN PERIOD (PENGUIN ACADEMICS SERIES) VOLUME 1 online book for free? I saw some website in you have to download some plugin to view the book. Are they saw?

    asked by marija
  94. Calculus

    Find a number, delta, such that if |x-2|

    asked by Ezra
  95. Math - Fractions

    Susan has p clean plates. After using 2/3 of the clean plates for a dinner party, Susan used 1/5 of the remaining plates to store the leftovers. In terms of p, how many plates are still clean and unused?

    asked by Venus
  96. Math - Fractions

    if c < -1 and d < 1, which of the following cannot be a value of the fraction c/d ? A) -2 B) -1 C) 1/2 D) 1 E) 2

    asked by Venus
  97. Math - Advanced Algebra

    if -1 < u < 0 < v < 1, which of the following in qualities could be true? I. u/v < -1 II. -1 < u/v < 0 III. u/v > 0 A) I only B) II only C) I and II only D) I and III only E) I, II and III

    asked by Venus
  98. algebra

    what is the translation of two more than four times the number

    asked by yvonne
  99. Alebra

    need to solve a word problem using linear equation in slope form. Ben walks 3 miles per hour, and runs at 6 miles per hour. Runs and walks a total of distance of 210 miles per week. Is this correct 210 = 3/6m +b - equation to show relation of hours run to

    asked by aaron
  100. Social studies

    What were 2 slave states that remiand in the union after the election of 1860

    asked by Lu
  101. Algebra Its Urgent!

    A second number is three times a first number. A third number is 15 more than the first number. If the sum of the three numbers is 330, find the numbers.

    asked by Abby
  102. English

    How do you write an essay on hobbies? Please Answer. Thank You.

    asked by Maddy Kate
  103. Math

    I need help with a math test 5 wks. from now! Help me!!!!!!!!!!!!!!!!!

    asked by Natalee
  104. Please help Miss sue (english)

    My legal and ethical obligations would be to make her understood to report medication error. In this scenario, the patient is “all right” that is what matters. It would more troubling if she didn't report and became defensive about things afterwards.

    asked by sham
  105. Algebra

    The expression 2x(y-1)-7xy+2x Please help thank you

    asked by Kiki
  106. Algebra

    The expression 2x(y-1)-7xy+2x Please help thank you

    asked by Kiki
  107. Geography

    Why was it important to link waterways?

    asked by Anonymous
  108. calculus

    After solving with A=(-1,2) x^2+2x^2+x+1 got 119/12a pls where did i get it wrong. And with -[(-55)] x^2-25dx i got -50 pls am i correct

    asked by grace
  109. Geometry

    asked by Ronnie
  110. Math

    What is the slope of a line perpendicular to the line whose equation is y=2x+7

    asked by Kiki
  111. Math

    If the coordinates of the center of a circle are (-3,1) and the radius is 4, what is an equation of the circle

    asked by Kiki
  112. Psycology

    In The Bell Curve, Richard Herrnstein and Charles Murray argued that the nation cannot come to terms with its massive social problems until it confronts the role of intelligence. "How bright someone is, is the single variable that has the largest impact on

    asked by Anonymous
  113. physics

    determine the pressure of a 20 lb force is applied to an area of 10 inch squared

    asked by charles
  114. physics

    If the water had lost 12000 joules and the calorimeter gained 1300 joules as the temperature of both rock and calorimeter increased from 22°C to 73°C and the mass of rock in the calorimeter was 189 grams, what is the specific heat, c, of the rock

    asked by omar
  115. language arts

    Add silent parterns to the folliwing to create new words. bo_,cli_

    asked by kiki
  116. Geography ( Ms. Sue)

    Why might two groups of people living in the same area develop different cultures?

    asked by Anonymous
  117. History

    (From the Novel of The Clan of The Bear Cave by Jane M.Auel) How similar or different is Auel's portrayal of Stone Age Life from that of Present-day life in the United States? (I WANT A DIRECT ANSWER PLEASE!)

    asked by Anonymous
  118. physics

    an electron of energy 100 mev collides with a photon of wavelength 3*10^6 nm.what is the maximum energy loss suffered by the electron..

    asked by kalyan
  119. English

    I have to answer about 25 questions about one scientific text on English. I already chose one, but need I can't add URL here, and need help :(

    asked by Sonja
  120. GDP geography

    Which of the following factors does not directly affect family size and composition? A. the divorce rate B. the marriage rate C. the GDP rate D. societal values D? kathi anderson forever never lasts

    asked by rockrboiluvr14
  121. Human Resources Management

    The Primary function of the Fed's Board of directors is to

    asked by Keshia
  122. law

    in regards to the Miranda rights are there still any unresolved issues regarding suspect rights that the Supreme Court will need to address in the future

    asked by Patiance
  123. Math - Ratios

    The ratio of wood bats to metal bats at a sporting goods store is 2:7. After 10 metal bats are sold, the ratio of wood bats is 3:8. How many wood bats are there at the store?

    asked by Venus
  124. Math - Ratios

    A pet store sells mice in 2 colors: brown and white. If 3/5 of the mice are brown, the ratio of male mice to female mice is 2:1, and 1/2 of the female mice are white, then what is the ratio of the number of brown male mice to the number of white male mice?

    asked by Venus
  125. Physics

    Which is greater, an acceleration from 30 km/h to 40 km/h or an acceleration from 85 km/h to 93 km/h if both occur during the same time?

    asked by Anonymous
  126. Intermediate Algebra

    for the polynomial function h(x)=2x to the 4th power-x to the 3rd power+2x to the 2nd power -4x-3 evaluate h(3)

    asked by Kimberly
  127. Physics

    If = (6.00 -8.00 ) units, = (-8.00 + 3.00 ) units, and = (27.0 + 19.0 ) units, determine a and b such that a + b + = 0.

    asked by Anonymous
  128. statistics

    P(z < -1.5 or z > 2.50) =

    asked by marilyn
  129. math

    write each expression using exponents ? 1)10.10.10 2)6 3)4.4.4.6.6

    asked by alex
  130. Math

    How do you segment postulates to determine congruent segments

    asked by Anonymous
  131. Chemistry

    Predict which compound from each of the following pairs will have the highest boiling points and why? NH3, He, Ar, LiF

    asked by Rachel