1. Physics

    An 8.0-kg history textbook is placed on a 1.25-m high desk. How large is the gravitational potential energy of the textbook-earth system relative to the desktop?

    asked by Anonymous on October 4, 2017
  2. dog behavior

    please check my answer thanks True or False Edward C. Thorndike studies the effects on dogs behaviors using a reward system I said True

    asked by Anonymous on April 17, 2008
  3. Chemistry

    You need to prepare 100.0 mL of a pH=4.00 buffer solution using 0.100 M benzoic acid (pKa = 4.20) and 0.220 M sodium benzoate. How much of each solution should be mixed to prepare this buffer? mL of benzoic acid ? mL of sodium benzoate?

    asked by Ana on March 27, 2015
  4. physical chemistry

    I need to make a solution of 50% ethanol in water (by mass). The partial molar volume of water is 17.0mL/mol and the partial molar volume of ethanol is 52.0mL/mol. What is the density of this solution/

    asked by chimuka on March 31, 2015
  5. Algerbra

    A homeowner wanted to improve the value of his home by putting tile flooring in three of his rooms. He researched the different types of tile and decided on two types: ceramic tile and decorative tile. He found that he could purchase the ceramic tile for

    asked by Anonymous on August 10, 2010
  6. LA 3 questions plz help me asap

    1) what does the present perfect tense show? A. Action that begin in the past and continues in the present B. Action that begins and ends in the present C. Action that begins in the present and continues in the future D. future action that begins in the

    asked by #AriannaGirl :) on November 17, 2015
  7. Research

    How will you utilize research techniques in the future? Other teachers may have further ideas for you. Here is a link to one of the best search-tools websites online, IMHO: http://www.sou.edu/library/searchtools/ You can learn how to search and how to

    asked by Anonymous on June 19, 2007
  8. Health Services

    How is the delivery system of a public organization different than that of a private organization?

    asked by Jess on November 1, 2007
  9. Health Science

    1a) What are controceptive b) Name six types of controceptive c) Name 10 diseases associated with the reproduction system. Please help me

    asked by somay on June 12, 2016
  10. algebra

    what is the system of equation of: 0.25x+0.15y=2.5 1.25x-1.25y=7.5

    asked by jhia on September 23, 2014
  11. Algebra 1

    Where would the system below intersect on a graph? y=12x+15 y=15x I know that: x=5 y=75 But I need help on how to graph it.

    asked by Allie on January 9, 2015
  12. chemistry

    what is the crystal system of the crystal structure of cesium chloride

    asked by adex on April 1, 2013
  13. Algebra 2

    What would be the simplest way to eliminate one of the variables? Below is a system of three equations in three variables: 1. x+y+3z=7 2. 2x-4y+z=7 3. 3x+5y-4z=-6

    asked by Sira on May 8, 2012
  14. Calculus

    Equation 1: (d[Y])/dt = k1 - v2[Y]*((ϵ^2+([X]/Kn )^2)/(1+([X]/Kn )^2 )) Equation 2: (d[X])/dt = v2[Y]*((ϵ^2+([X]/Kn )^2)/(1+([X]/Kn )^2 )) - k3[X] Kn=3 and ϵ=0 How do I find the value of [X] when system is at steady state?

    asked by Julio on December 2, 2012
  15. Biology

    In the two-kingdom system, why were fungi classified in the kingdom Plantae?

    asked by Lilly on September 22, 2009
  16. Science

    what is the earth's time system based on? I think it's time zones..

    asked by Angie on May 9, 2009
  17. chem

    why does the temperature decrease as the internal energy of a system decrease?

    asked by kim p on March 15, 2010
  18. 10 grade algebra

    15. In the following system of equations, what does x equal? -10x + 4y = -64 -10x - 8y = -112

    asked by gage on April 24, 2013
  19. science

    In the two-kingdom system, why were fungi classified in the kingdom Plantae?

    asked by Lillibeth on September 22, 2009
  20. govt

    what system of government gives all key powers to the national government.

    asked by Anonymous on July 20, 2011
  21. Accoutning

    Identifying cost flows in process cost system

    asked by Kelly on March 30, 2007
  22. calc

    the volume of a cylindrical tin can with a top and a bottom is to be 16*pi cubic inces. if a minimum amont of tin is to be used to construct the can, what must be the height, in inches, of the can? volume of cyliner is pi*r^2*h do i like take derivitive of

    asked by david on December 8, 2006
  23. substance abuse couseling

    Process 1.Prewrite about your field of study and create a specific job for which you might want to apply at a particular business or organization in your area.Outline what that position would look like.Brainstorm details,names,titles,and facts to provide

    asked by claira on August 29, 2012
  24. math

    Can someone please help me/ Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x +

    asked by Please Help on October 24, 2015
  25. weakness and strenght of a brand name

    I need some help determining the strengths and weaknesses of these brand names..... Girl Scout’s – Cookies- Their strength in the brand name is that they are recognized as a guide for young girls to be leaders of tomorrow, which is to empower young

    asked by Cher on August 28, 2006
  26. Chemistry

    When sodium chloride, NaCl, is added to water, it forms a solution. Rank the steps involved in the dissolution of salt in water from first step to last step. To rank items as equivalent, overlap them. a.) NaCl crystal is added to water b.) NaCl solution

    asked by LuigiR on November 14, 2015
  27. college physics

    A block of weight = 35.0 N sits on a frictionless inclined plane, which makes an angle theta = 27.0 with respect to the horizontal. A force of magnitude = 15.9 N, applied parallel to the incline, is just sufficient to pull the block up the plane at

    asked by Anonymous on February 25, 2010
  28. writing

    Based on what I have so far, what direction do you think I should go--what do you feel the thesis is about? This will eventually end up 10 pages long. I am concerned that I will not find enough to write about. The assignment is, "What, if anything, is

    asked by Diana on October 17, 2006
  29. analytical chemistry

    A sample is to be analyzed following a prescriptive quality assessment protocol with a detection limit for the method of 0.05ppm. The calibration curve relationship is S means= 0.276X (ppm analyte) Afield blank is spiked with the analyte to a concentration

    asked by JeSSica_21 on March 21, 2007
  30. dressmaking

    1)What sewing method should be used to attach a row of two mettalic threads around the wrist of a dress made of voile A)Trapunto B)Fagoting C)Couching D)smocking Im looking at either C or D 2)If you want to attach curved lines of beads,you can either apply

    asked by Sarah on May 23, 2012
  31. interest math

    On April 12, Michelle borrowed $5,000 from her credit union at 9% for 80 days. The credit union uses the ordinary interest method. a. What is the amount of interest on the loan? $90 b. What is the maturity value of the loan?$5090 c. What is the maturity

    asked by lynda on November 14, 2013
  32. Algebra

    (8m^7 - 10m^5) / 2m^3 Answer choices - 4m^7 - 5m^5 4m^4 - 10m^5 8m^7 - 10m^2 4m^4 - 5m^2, please show me your work Simplify into one fraction -2/x+3 - 4/x-5 answer choices - -6x - 2/ (x+3)(x-5) 6(x-1)/(x+3)(x-5) -6/(x+3)(x-5) Simplify into on fraction

    asked by PLEASE HELP ASAP on May 20, 2015
  33. Physics

    Using a graphical method of getting resultant vectors, find the resultant of the following vectors: 8N along the positive X-axis and 6N making an angle of 45 degrees with the positive X-axis and 10N -20 degrees below West.

    asked by John on November 23, 2017
  34. Math

    Uncle Ritchie has some $10 bills in his wallet. He shares all of them equally among his 4 nieces and nephews. Each of the nieces and nephews then donates two $10 bills to charity. They then each have five $10 bills. How many $10 bills did Uncle Ritchie

    asked by Cherie on March 22, 2013
  35. American Government

    Which method is most often used to propose amendments to state constitutions? a. a constitutional convention is held to propose amendments b. a petition proposes the amendment and begins the initiative process c. a new amendment is proposed in a session of

    asked by Elise Bedford on April 17, 2017
  36. math

    On April 12, Michelle Lizaro borrowed $5,000 from her credit union at 9% for 80 days. The credit union uses the ordinary interest method. a. What is the amount of interest on the loan? $ b. What is the maturity value of the loan? $ c. What is the maturity

    asked by reva on December 18, 2014
  37. Finte Math - Simplex Method

    Just a few questions to make sure I am understanding the simplex method. First you set up matrice, then you find the column with the largest negative number in bottom row. That is the column you will pivot. So then how do you determine which row is the

    asked by Robson on June 21, 2012
  38. chemistry

    Hi Can sombody please help me with this problem If a soil sample contains 0.5g of iron (Fe3+) per 100g. The iron is precipitated when soil becomes alkaline as shown by equation Fe3+ + 3OH + (x-1)H2O ? FeOOH.xH2O(s) The soil is sprayed with 50 wt% urea

    asked by Mary on March 26, 2010
  39. Java Programming

    I need to create a pseudocode for the follwing application: Write Java-like pseudocode to specify the logic for the following program application: Write an application that prompts an employee for an hourly pay rate and hours worked. Compute gross pay

    asked by John on June 27, 2013
  40. Physics

    A ball is thrown upward from the ground with an initial speed of 25 m/s; at the same instant, a ball dropped from rest from a building 15 m high. After how long will the balls be at the same height? The equations I have is final velocity squared = initial

    asked by Becca on September 24, 2006
  41. inductrial engineering

    The Only Organic (OO) golf complex has a first cost of $55M, annual O&M costs of $10M, salvage value in year 100 of $25M, clubhouse renovation every 10 years costing $19M (but not in year 100), and reseeding every 4 years starting in year 4 costing $8M.

    asked by Thano on July 23, 2007
  42. Art Please Ms.Sue Help

    1.How do landscape paintings convey the values and ideas of Chinese culture? A.Landscape paintings show chaotic, unhappy culture. B.Landscape paintings reveal the importance of natural history to the Chinese. C.Landscape paintings show that Chinese desire

    asked by Student on March 11, 2016
  43. Chemistry quick question

    Ok so a quick question. I have the equation Ca3(PO4)2 --> 3Ca+2 + 2PO4-3 Sorr its confusing, int he first part the 3 4 and too are all little numbers at the bottom, for the second part the +2 and -3 are small numbers at the top to show the charges. Ok so

    asked by Tracy on June 20, 2006
  44. Health Plz help THX!!

    Explain what would happen if your epiglottis stopped working properly. A. you would have to go to dialysis to get your blood filtered everyday B. you would have to use an inhaler when the pollen or dust repeatedly bothered you C. you would choke on food

    asked by Sparkles_01 on April 12, 2016
  45. HEALTH PLZ HELP MEEEEEEEEEEEE ASAPPPPPPPP

    Explain what would happen if your epiglottis stopped working properly. A. you would have to go to dialysis to get your blood filtered everyday B. you would have to use an inhaler when the pollen or dust repeatedly bothered you C. you would choke on food

    asked by Sparkles_01 on April 12, 2016
  46. Word Problem

    A wire from the top of a TV tower to the ground makes an angle of 52 degrees with the ground and touches the ground 180 feet from the base of the tower. How high is the tower? a)290 feet b)230 feet c)110 feet d)140 feet I'm pretty sure we can eliminate c

    asked by Kellie on March 10, 2007
  47. chem

    which of the following is a chemical reaction? A) propane forms a flame and emits heat as it burns. B) Acetone feels cold as it evaporates from the skin. C) Bubbling is observed when potassium carbonate and hydrochloric acid solutions are mixed. D) Heat is

    asked by Jenn on February 20, 2007
  48. Social Studies

    Past President John Quincy Adams said of the Missouri Compromise that it was “but a title page to a great and tragic volume.” Past President Thomas Jefferson remarked that the Missouri Compromise was “a fire bell in the night.” (or a warning bell).

    asked by Amy on August 19, 2007
  49. chemistry

    At a given temperature, you have a mixture of benzene (vapor pressure of pure benzene = 745 torr) and toluene (vapor pressure of pure toluene = 290 torr). The mole fraction of benzene in the vapor above the solution is 0.590. Assuming ideal behavior,

    asked by renee on February 22, 2012
  50. health

    If you work in health care, provide your professional point of view on whether or not the physician-centered communication attributes listed below correspond to physicians at your workplace. If you do not work in health care, provide your personal point of

    asked by Renee on July 28, 2009
  51. College Chemistry

    Suppose 15.0 grams of solid sodium hydroxide solid at 20.5 oC is dropped into 120 grams of water in a container that has a heat capacity of 10.0 J/oC, temperature also 20.5 oC. A solution that has a density of 1.04 g/mL forms at a temperature of 38.0 oC.

    asked by Matt235 on October 25, 2015
  52. Physics

    Hooke's law states that it takes a force equal to kΔx is required to stretch a sorting a distance Δx beyond its rest length. A) determine a formula in terms of k & Δx that represents the amount of work required to stretch a spring to a distance Δx.

    asked by Sandara on January 3, 2014
  53. Physics repost please help

    The mass of a string is 6.0 x 10^-3 kg, and it is stretched so the tension in it is 195 N. A transverse wave traveling on this string has a frequency of 260 Hz and a wavelength of 0.60 m. What is the length of the string? Isn't wavespeed=

    asked by Mary on April 27, 2007
  54. Art

    Thank you, Writeacher. I still have a few more paragraphs to check. 1)I think that ads can be very dangerous for children because they often show children happy for a kind of product, like a toy and so they want to be like them. 2) I think that parents

    asked by John on May 26, 2012
  55. English

    Can you check the following sentences for me? Let me know how I can improve them, please. 1) England was invaded by some Germanic tribes, known under the name of (?) the Anglo-Saxons, then by the Vikings, who were defecate by the Normans. 2) As far as

    asked by Franco on February 17, 2010
  56. Accounting

    Financial Accounting 1. The following information was made available from the income statement and balance sheet of Meranda Company: ITEM 12/31/2010 12/31/2009 Accounts Receivable $ 42,000 $ 45,100 Accounts Payable 27,900 24,500 Merchandise Inventory

    asked by Angie on October 19, 2012
  57. chemistry

    If a solution of 0.10 M silver nitrate, AgNO3, is slowly added to a solution containing 0.010 M potassium iodate, KIO3, and 0.20 M sodium bromate, NaBrO3, what precipitate will form first. Will this precipitate form nearly completely (99%) before the

    asked by bria on September 13, 2006
  58. physics

    a person is pulling a 100 lb box across a smooth horizontal surface. what is the acceleration of the box if they are pulling upward at an angle of 20° with a force of 75 lbs Well, I know that there is no friction involved because it is a smooth surface

    asked by Hanky on March 9, 2015
  59. Math: Calculus

    Can someone help me out here with these two problem? I have know idea where to start. 1)The equation: 10(x-1)(x-2)(x-3)=1, has three real solutions a

    asked by REALLY NEED HELP!!!! on November 4, 2010
  60. structural engineering

    Fig P9 shows a drawbridge being rasied by a cable EI. The structure is a loaded truss consisting of a pinned assembly of members(links) joined at their ends designed to from a rigid structure. The four joint loadings shown result from the weight of the

    asked by CHAI on November 17, 2012
  61. 8-12 sentence paragraph

    I have to write these paragraphs for a writing assignment and just wasn't sure is I was doing it right. Need some advice!! ASSIGNMENT: You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and

    asked by alma on March 21, 2012
  62. help asap please

    GUIDELINE: Set achievable goals for your work unit. If I were going to set achievable goals they would be meet the deadline. Have the work be the best it can be. An example: Writing a research paper and the goals for it could be the following. To beat the

    asked by dawn on October 28, 2008
  63. science

    1. The skeletal system is created to ____________ internal organs. A) protect

    asked by Anonymous on January 6, 2016
  64. health

    1. The skeletal system is created to ____________ internal organs. A) protect

    asked by Jake on March 8, 2016
  65. physics

    An oscillator has an amplitude of 3.2. At this instant displacement of the oscillator is 1.4. What are the two possible phases of the oscillator at this instant? Work so far: x= Acos (constant) x=displacement A=amplitude so 1.4=3.2 cos (constant)

    asked by Anonymous on November 12, 2007
  66. Calculus

    55. Find an equation of the tangent line to the graph of f(x) =x^3 - 2x + 1 a) at (2,5); b) at (-1,2); c) at (0,1). I believe the answers are: a) y= (3/2 x) - (3/2) b) No solution c) No solution For each function, find the points on the graph at which the

    asked by Robert on October 8, 2007
  67. English

    1. I am in the RCY club. We do clean-up activities and help people in need. 2. I am in the gag club. We make scripts and do plays. 3. I am in the science invention club. We make things with plastic and metals and have a display show. 4. I am in the pop

    asked by John on April 13, 2009
  68. math

    How do you factor 2x^2-5x+2? (x-2)(2x-1) how do you figure that out? trinomials like that can usually be done intuitively, but you should have been taught a method that you can use for general cases. Look at the first term of 2x^2 and think where that can

    asked by George on May 2, 2007
  69. statistics

    : an airline offers discounted advanced purchase fares to customers who buy tickets more than 30 days before travel and charges regular fares for tickets purchased in the last 30 days before travel. The airline notices 60% of its customers take advantage

    asked by sarah on May 1, 2012
  70. Algebra

    Martin is making a candy that contains 90% milk chocolate and the rest caramels. The candy has 3 pounds of caramels. Part A: Write an equation using one variable that can be used to find the total number of pounds of milk chocolate and caramels in the

    asked by Anonymous on November 4, 2017
  71. math

    A student is attempting to factor a polynomial. Sample mathematical work is shown below. Which statement best applies to the sample mathematical work? Given 3x + 6, the factors of the first term are 3 and x, and the factors of the second term are 1, 2, 3,

    asked by Joshua on September 22, 2014
  72. Physics

    A point charge with a charge q1 = 3.80 μC is held stationary at the origin. A second point charge with a charge q2 = -4.10 μC moves from the point x= 0.140 m , y=0 to the point x= 0.240 m , y= 0.240 m. How much work is done by the electric force on q2? I

    asked by Stesson on January 30, 2018
  73. SOC

    Aron: The two double A batteries in my CD player are dead, so the CD player doesn’t work. My television remote control, which also uses two double A batteries, works fine. So if I move the two batteries from my television remote control to my CD player,

    asked by shelly on February 20, 2011
  74. Physics

    Mass is measured in grams, acceleration is measured in meters per second squared, and distance is measured in meters. Force is equal to mass times accelaration, and work is equal to force times distance. What is the unit of work?

    asked by Jay on September 28, 2016
  75. Science

    Mass is measured in grams, accelaration is measured in meters per second squared, and distance is measured in meters. Force is equal to mass times sccelation, and work is equal to force times distance. What is the unit of work?

    asked by Jessie R. on September 27, 2016
  76. ap statistics

    A fire insurance company felt that the mean distance from a home to the nearest fire department in a suburb of Chicago was at least 4.7 miles. It set its fire insurance rates accordingly. Members of the community set out to show that the mean distance was

    asked by nicole on April 25, 2014
  77. Math

    I don't want the answer I want to know how you solve the problem! A restaurant manager bought 20 packages of bagels. Some packages contained 6 bagels each, and the rest contained 12 bagels each. There were 168 bagels in all. How many packages of 12 bagels

    asked by Ron on April 9, 2007
  78. Extraction equations

    We did an extraction. A solid including benzoid acid, p-nitroaniline, and napthalene was dissolved in dichloromethane. HCl was added to give the aqueous salt of p-nitroanaline. NaOH was added to give the aqueous salt of benzoic acid. Napthalene remained.

    asked by Sheryl on October 7, 2006
  79. pre-algebra

    how do i solve proportions??? please help!! And how do i kno what corrisponding sides are??? To solve a proportion, use cross products. For example, the proportion = can be solved as follows: = Write the original proportion. 50 n = 3 180 Find the cross

    asked by jaimmers on March 15, 2007
  80. Physics

    a car travels 59.78 miles east in 89.67 minutes, then 89.67 miles north in 59.78 minutes, and then 29.89 miles at 59.78 degrees west of south in 149.45 minutes. whats the magnitude of the car's average velocity in miles per hour??? Please help!!!!!! P.S.

    asked by Autumn on September 7, 2009
  81. accounting

    What is the purpose of the chart of accounts? o Why are internal controls and audit trails important in a computerized accounting system? · This assignment can be completed using Microsoft Word or the online posting tool.

    asked by Anonymous on February 11, 2010
  82. Philosophy

    Do you know any good websites where I can find information about the capitalist economic/political system in the US as well as in Denmark and/or France? I tried google but I haven't found a great site or I'm usually given a sentence or 2 about the topic.

    asked by Montega on June 2, 2009
  83. criminal justice

    i need someones opinion on this question please. The American criminal justice system is a good one, but far from perfect. Innocent people have gone to prison and guilty ones gone free. How much of the out come of a trial has to do the ethics of the

    asked by paula on September 19, 2010
  84. History PLS HELP

    Which two of the following characteristics are necessary for a state to exist? Select all that apply. (2 points) 1. territory *** 2. judiciary 3. sovereignty 4. constitution 5. federal system 6. organized government *** 7. seperation of powers AM I RIGHT?

    asked by HELP I NEED HELP RIGHT NOW PLEASE ANSWER! on October 3, 2016
  85. math

    a cabinet will inclose a rectangular loud speaker system and will have an internal volume of 2.4 cubic feet. The height will be 1.5 times the width. What are the dimesnions of the enclosure that can be constructed at a minimum cost?

    asked by diwas on November 13, 2012
  86. Funny question

    I'm just curious to know are there any incentives or point system for answering questions here? Like what drives people to? Hobby, getting paid, bored or something else? Does this site have the same structure as ya4oo answers? If so, I kind of get it then.

    asked by Zack on August 8, 2018
  87. Help please criminal j.

    1. In re Gault assured juveniles a. the right to a jury trial b. all the above c. due process in the legal system d. the right to be tried as an adult All the above 2. Obtaining a confession by__ is constitution a. misrepresentations b.

    asked by Robby on July 6, 2013
  88. biology

    an animal has a segmented body, soft fleshy skin, an open circulatory system, it breaths with tiny tubes and openings, and does not have legs or antennae. How would this organism need to change to become an arthropod?

    asked by nancy on February 18, 2009
  89. Science

    The human system produces______in response to a vaccine, which later can bind to and destroy the pathogen it invades. Fill in the blank I was thinking is was either antibodies or lymphocytes But if it is not either of those there are more options I just

    asked by ++++++++++++++++ on February 20, 2019
  90. English

    I also have to describe Cyrano de Bergerac's personality-all I can think of that it is flamboyant,charismatic, poetically inclined, arrogant yet timid and fearful in love and holds true to his belief system to his own demise. Is any of that correct?

    asked by Janet on May 3, 2010
  91. , science,

    GOT STUCK PLEASE HELP LOOKED AT EVERY WEBSITE T- the skeletal system consists of 206 bones H- helps protects the body E- S-support K- E- L-ligaments E- T-tendons A- L- S-skeleton Y- S-shape and structure T- E-exercise M-

    asked by erc33 on September 21, 2015
  92. Physics

    Question Three capacitors, each of capacitance 120 pF, are each charged to 500 V and then connected in series. Determine (a) the potential difference between the end plates, (b) the charge on each capacitor, and (c) the energy stored in the system.

    asked by gOOD eVE on April 24, 2016
  93. World History

    Question 16 (Multiple Choice Worth 5 points) Please check: (05.05 LC)Which of the following is not considered a cause of the Enlightenment? increased availability of printed books the Scientific Revolution *******decline in the education system******** the

    asked by Jessie on February 5, 2016
  94. History

    . Which characteristic helped make the Gupta Empire a golden age? A) adoption of a social caste system B)conquest of neighbors C)growth of religious schools ****** D)reduction in trade

    asked by mic on October 4, 2016
  95. Physics

    A 0.9 kg object that stretches a spring 2.5 cm from its natural length when hanging at rest oscillates with an amplitude of 8.1 cm. Find the total energy of the system. The acceleration due to gravity is 9.81 m/s2. Answer in units of J

    asked by Maxx on December 5, 2011
  96. civics

    Which of the following would be part of the Republican Party Platform? A. creating a new health care system B. banning hand gun use C. reducing the size of government D. raising taxes on the wealthy I think the answer is C.

    asked by StudeNt on May 30, 2015
  97. philosophy

    How are values established according to Hume? What human characteristics does he privilege in determining a value system and how do they inform our morality? How are they related to “Utility” and “Justice”? Are you convinced by his characterization

    asked by liz on June 20, 2015
  98. Geometry

    find the circumference of the figure, Give both the exact value and an approximation to the nearest hundredth. Circle 6.6km I am just learning this and a teacher is using inches but the textbook has metrics and I never learned the metric system Please

    asked by Jeannie on March 28, 2011
  99. p.e

    Air pollutants can do all of the following except A. reduce your protection from the sun's radiation B. cause discoloration to your hair C. damage the respiratory system D. enter bloodstream and harm other parts of the body** Check pleaase

    asked by Anonymous on April 26, 2015
  100. Chem-Stoich

    A 1.605g sample of dry calcium carbonate and calcium chloride mixture was dissolved in 35.00mL of 1.000mol-dm-3 hydrochloric acid solution. The only portion of the mixture that reacts with the hydrochloric acid solution is the calcium carbonate. What was

    asked by :) on January 7, 2015

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