1. Physics

    How much force is required to accelerate a 1500kg car to a speed of 17m/s in a distance of 45m? Thank you.

    asked by Steph on January 3, 2015
  2. medical billing

    at what point during the course of treatment of a new patient should notice of use and disclosure of health information required under HIPPA be given and why

    asked by jan on December 29, 2010
  3. Chemistry

    How much ethanol C2H50H in liters d=0.789g/ml must be dissolved in water to produce 190.5 of 1.65M c2H50H ? Molarity problem. Who helps me to solve it for me. My calculation 0.789g/ml x 1000ml/46.06 = 17.12M 17.12M = 190.5 x 1.65 17.12M = 314.325 x=

    asked by Fai on July 31, 2012
  4. Algebra

    A chemist mixed a 70% alcohol solution with a 30% alcohol solution to make a 45% alcohol solution. How many liters of each were used to make 120 L of a 45% solution? I tried solving this with elimination method and made two separate equations. For

    asked by Annie on May 20, 2016
  5. CHEM QUICK HELP

    Which of the following are correct statements? (Could be as many as 4) 1. Standard pressure is 101.3 atmospheres 2. One mole of gas contains 22.4 representative particles 3. One mole of gas always occupies 22.4 liters regardless of other conditions 4.

    asked by emily on April 11, 2013
  6. Chem II

    Which of the follwoing gives the molarity of 17.0% by mass solution of sodium acetate (molar mass = 82.0 g/mol) in water. The density of the solution is 1.09 g/mL. OK - I know that to figure molarity is moles divided by liters. This is confusing me because

    asked by Ken on June 4, 2008
  7. chemistry/math

    The density of air at ordinary atmospheric pressure and 25°C is 1.19 g/L. What is the mass, in kilograms, of the air in a room that measures 12.0 ft 12.5 ft 7.3 ft? i made ft^3 into Liters and got 8,346,211.799 then I made the grams into kilograms and set

    asked by Hannah on August 19, 2012
  8. 12th grade chemistry

    It is required to titrate ethanol solution .Being available a 0.2mol/l potassium dichromate solution and 4mol/l sulfuric acid solution on the presence of a convenient indicator. a)indicate the glassware used for titration. b)give a brief description of the

    asked by andy on July 12, 2016
  9. Chemistry

    1. Which of the following will result in a chemical change? A. Melting ice to obtain water B. Evaporating alcohol into vapor C. Drying wood in a shed D. Burning coal in a furnace(My answer) 2. A salt is obtained as a reaction between A. a nonmetal and a

    asked by Anonymous on September 27, 2011
  10. Calculus Help Please Urgent!!!

    Breathing is cyclic and a full respiratory cycle from the beginning of inhalation to the end of exhalation takes about 3 s. The maximum rate of air flow into the lungs is about 0.3 L/s. This explains, in part, why the function f(t) = (3/10)sin(2πt/3) has

    asked by TANYA on May 1, 2014
  11. chemistry

    How much ethanol C2H50H in liters d = 0.789g/ml must be dissolved in water to produce 190.5 of 1.65M C2H50H? Molarity problem. My calculation 0.789g/ml x 1000ml/46.06 = 17.12M 17.12M = 190.05 x 1.66 17.12m = 314.325 x= 314.325/17.12 x=18.36 I am not sure

    asked by Fai on August 12, 2012
  12. Math

    It is a beautiful sunny day at the fair. The U.V. index for this day is 8, or high, so sunscreen is a must for all the young folk. The effectiveness of sunscreen is indicated by the sunscreen protection factor (SPF). The higher the SPF number the fewer

    asked by Lilly on April 10, 2018
  13. math

    It is a beautiful sunny day at the fair. The U.V. index for this day is 8, or high, so sunscreen is a must for all the young folk. The effectiveness of sunscreen is indicated by the sunscreen protection factor (SPF). The higher the SPF number the fewer

    asked by emily on April 7, 2018
  14. English

    Thank you very much for your help. Here are some more sentences I'd like you to check. (I included four sentences on how to make wine) 1)This wine is made from Nebbiolo grapes, grown exclusively on the slopes (vineyards?) of these hills. 2)These veneyards

    asked by Mike on March 16, 2011
  15. Chem2

    At 25C, the concentration of lead(II) sulfate in a saturated aqueous solution is 7.9 x 10^-M. Determine the volume, in liters, of saturated solution of lead(II) sulfate that contains 1.0g of lead(II) sulfate.

    asked by Izzyrun on September 12, 2014
  16. CHEM

    Air is approximately 80% nitrogen and 20% oxygen (on a mole basis). If 6 g of hydrogen is added to a 22.4 liter maintained at 0 degrees c and initially filled with air at 1 atm pressure, what will be the molecular mass (i.e. the average molecular mass) of

    asked by Jessica Lynn on January 7, 2007
  17. Earth Science

    Seismic waves move faster through which of the following media? a.) water b.) steel c.) oxygen d.) oil Please answer my study guide is due Monday and the teacher hasn't gone over this I looked through my notes and everything. It would really help if you

    asked by ? on January 13, 2013
  18. Chemistry

    A compound containing only carbon, hydrogen and oxygen is subjected to elemental analysis. Upon complete combustion, a .1804g sample of the compound produced .3051g of CO2 and .1249g of H2O. What is the empirical formula of the compound?

    asked by Brian on March 14, 2013
  19. chemistry

    i have the Mr of lead nitrate 331 and i thermally decompose it giving nitrogen dioxide and oxygen. i want to collect exactly 200cm3 of the gases evolved in a syringe. what mass of lead nitrate should i take ?

    asked by linda on June 30, 2011
  20. Chemistry

    The combustion of methanol (CH3OH) forms carbon dioxide and water vapor. A combustion reaction refers to a reaction of a substance with oxygen gas. What is the balanced equation?

    asked by Anonymous on October 10, 2017
  21. chemistry

    Combustion analysis of 1.0g of a compound containing carbon , hydrogen and oxygen gives 2.3 g of carbon dioxide and 0.93g of water . If The relative molecular mass is 58. Calculate The empirical and molecular formula

    asked by hiedi on September 20, 2015
  22. chemistry

    I have posted this once and still cannot get the correct answer. Determine the mass of carbon monoxide that is produced when 45.6 of methane, CH4, react with 73.2 g of oxygen , O2. The products are carbon monoxide and water vapour.

    asked by Kelsey on August 3, 2010
  23. biology lab

    how to know from the experiment if the oxygen produced as a result of carbon fixation or electron transport? my experiment result show that average bubble/min for tap water is 4.7 while NaHCO3 is 1.8.

    asked by Yuni on July 31, 2011
  24. Chemistry

    When 0.100 mol of carbon is burned in a close vessel with 8.00g of oxygen, how many grams of carbon dioxide can form? Which reactant is in excess, and how many grams of it remain after the reaction?

    asked by Jasmine on September 29, 2009
  25. Science

    Assuming all volume measurements are made at the same temperature and pressure, what volume of hydrogen gas is needed to react completely with 3.75 L of oxygen gas to produce water vapor?

    asked by James on April 18, 2015
  26. Chemistry

    which is an example of physical change 1.water decomposing into hydrogen and oxygen 2.potassium and bromine combining to form potassium bromide 3.solid ice melting into liquid water 4.none of the above i think its 3.

    asked by jessica on November 29, 2010
  27. stoiciometry (chemistry)

    calculate the theoretical yield of Cu when 53.2g Cu2S react with oxygen. (balanced equation is CU2S+02>2Cu+S02) Please help me figure this homework out. I just dnt get how to get the theoretical yeild. I want to know to be able to do the rest right. Thanks

    asked by lila on April 16, 2013
  28. Chemistry

    When 0.100 mol of carbon is burned in a close vessel with 8.00g of oxygen, how many grams of carbon dioxide can form? Which reactant is in excess, and how many grams of it remain after the reaction?

    asked by Jasmine on September 28, 2009
  29. Chemistry

    Oxygen has a boiling point of 90K, and nitrogen has boiling point of 77K. Which is a liquid and which is a gas at 80K? I tried to look into the phase diagrams, but I still don't understand. Can somebody please help and explain to me??? THANKS A LOT!!!

    asked by Cynthia on July 10, 2011
  30. chemistry

    how do u draw the lewis structure for something like CO -2 over 3. do u add 2 electrons on to the oxygen when yur finding the number of valence electrons cuz that's wat i thought u did but then i got all those questions wrong so wat do u do

    asked by michelle on October 4, 2007
  31. Science

    1. The process of nitrogen fixation uses oxygen to produce carbon dioxide- false? 2. While a pyramid of numbers or biomass can be inverted, a pyramid of energy cannot- false? are my answers correct?

    asked by Bethany on October 2, 2014
  32. Biology

    Which organ systems help deliver oxygen to body cells? I think that its the enodcrine and lymphatic systems the other choices are A.respitory and excratory B.muscular and immune systems C.respiratory and circulatory systems

    asked by Connor on May 21, 2015
  33. chemistry

    A 2.0 liter balloon at a temperature of 25°C contains 0.1 mol of oxygen and 0.4 mol of nitrogen. What is the partial pressure of nitrogen?

    asked by Anonymous on December 5, 2011
  34. chemistry

    Calculate the number of moles in 75.0 g of oxygen gas. A. 2.34 mol O2 B. 4.69 mol O2 C. 750 mol O2 D. 12.5 × 1023 mol O2 B

    asked by Cathy on November 11, 2012
  35. Chemistry

    reaction between sulfur and oxygen is S+O2 = SO2. how much sulfur is in the original materials, would result in 1000g of so2

    asked by Gracy on October 15, 2011
  36. Chemistry

    A sample of an oxide of antimony (Sb) contained 51.5 g of antimony combined with 16.9 g of oxygen. What is the simplest formula for the oxide?

    asked by Greg PLS HELP on March 14, 2013
  37. Chemistry

    If i have 0.5 mole of hydrogen peroxide how many moles of oxygen would be produced assuming all of the hydrogen peroxide decomposes?

    asked by Kayla on May 1, 2016
  38. chem

    A sample of an oxide of antimony (Sb) contained 51.5 g of antimony combined with 16.9 g of oxygen. What is the simplest formula for the oxide?

    asked by Greg PLS HELP on March 14, 2013
  39. chem

    A sample of oxygen at 32◦C occupies 340 mL. If this sample later occupies 1064 mL at 57◦C and 1.2 atm, what was its original pressure?

    asked by lex on December 1, 2016
  40. chemistry

    5.6g of organic compound on burning with exess oxygen gave 17.6g of CO2 and 7.2g of H2O .the organic compound

    asked by Anonymous on February 1, 2015
  41. physical science

    4.8g of magnesium react was completely burned in oxygen and magnesiumoxide was produced. what is the mass of magnesium produced?

    asked by Ruben Amwenyo on November 8, 2016
  42. Chemistry

    A sample of oxygen gas occupies a volume of 3.84 L at 269. K. What volume will the sample occupy at 486. K?

    asked by Paula on December 6, 2014
  43. bio

    if you had two fish in two separate containers with different volumes (a-more water and b- less water)which container would have more oxygen available to the fish when first introduced

    asked by Anonymous on October 13, 2008
  44. chemistry

    A sample of oxygen gas occupies a volume of 3.84 L at 269. K. What volume will the sample occupy at 486. K?

    asked by Jessica on December 6, 2014
  45. Chemistry

    A sample of an oxide of antimony (Sb) contained 25.0 g of antimony combined with 8.2 g of oxygen. The simplest formula for the oxide is?

    asked by Chris on May 12, 2010
  46. Chemistry

    Solid magnesium reacts with oxygen gas to produce 568g of solid magnesium oxide.

    asked by Emmaly on January 17, 2013
  47. Chemistry

    If i have 0.5 mole of hydrogen peroxide how many moles of oxygen would be produced assuming all of the hydrogen peroxide decomposes?

    asked by Kayla on May 1, 2016
  48. chem

    How many moles of water are produced when 1.05 g of oxygen gas reacts with 1.22 g of hydrogen gas to produce water?

    asked by megan on March 9, 2008
  49. Science

    How much graphite carbon must be burned in oxygen gas to produce 2.2 grams of carbon dioxide gas

    asked by Isaac on November 27, 2015
  50. Chemistry 111

    calculate the number of moles of magnesium, chlorine, and oxygen atoms in 8.80 moles of magnesium perchlorate?

    asked by kee on July 14, 2011
  51. Chemistry

    In the redox conversion of CO to CO2− 3 , the oxidation number of C goes from (−2, 0, +2) to (−4, −2, +4, +6). Recall that the oxidation number of oxygen is typically −2. 1. +2; +6 2. −2; −4 3. 0; −2 4. 0; +6 5. −2; +6 6. +2; +4

    asked by Kayla on September 30, 2012
  52. college chemistry

    A closed container is filled with oxygen. The pressure in the container is 325 . What is the pressure in millimeters of mercury?

    asked by Tiffany on July 7, 2010
  53. chemistry

    Burning 32 g of CH4 in excess oxygen will produce how much CO2 according to the equation CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g)

    asked by heens on January 22, 2012
  54. Chem 130

    How many grams of Aluminum oxide will be produced when 2.44 grams of Aluminum burns in air (i.e. react with Oxygen)?

    asked by michelle on October 30, 2014
  55. math

    a cubic container was completely filled with water. when 3/4 of the water from the container was poured into a rectangular tank, the tank became 1/4 full. the capacity of the tank is 1.024 liters more than that of the cubic container. Find the length of

    asked by stacy on April 18, 2015
  56. math

    A water tank will be drained at a constant rate of 42.4 liters per hour starting at 9:00 A.M. After one hour, the change in the amount of water in the tank can be represented as –42.4. Which of the following represents the total change in the amount of

    asked by john on October 7, 2015
  57. A & P

    The skin plays a major role in A. retention of oxygen and excretion of carbon dioxide. B. absorption of vitamin A and certain drugs. C. storage of fatty tissure for energy. D. synthesis and storage of proteins. I didn't understand this question at all.

    asked by Diana on February 2, 2014
  58. Chemistry

    N2(g) + O2(g) → N2O5(g) What volume of oxygen gas reacts to yield 750.0 cm3 of N2O5? The reaction conditions are 350°C and 2.50 atm pressure. I balanced the equation 2N2+2O2 = 2N2O5 BUT I AM NOT GETTING THE CORRECT ANSWER, WHAT AM I DOING WRONG?

    asked by Harry on February 2, 2014
  59. Chemistry (Stoichiometry)

    Potassium superoxide (KO2)reacts in the following equation: 4KO2 + 2H2O +4CO2 =4KHCO3 + 3O2 If a person wearing an oxygen mask exhales 0.85 grams of CO2 every minute, how many moles of KO2 are comsumed every 10.0 minutes?

    asked by Alexus on February 7, 2013
  60. Chemistry

    For which of the following aqueous salts will electrolysis produce hydrogen gas and oxygen gas? Answered the hint in Mastering Chem & looked over the book and I still have no idea. Check all that apply: A) NiF_2(aq) B) NaF(aq) C) NiI_2(aq) D) NaI(aq) E)

    asked by Mike on November 9, 2012
  61. Chemistry

    N2(g) + O2(g) → N2O5(g) What volume of oxygen gas reacts to yield 750.0 cm3 of N2O5? The reaction conditions are 350°C and 2.50 atm pressure. I balanced the equation 2N2+2O2 = 2N2O5 BUT I AM NOT GETTING THE CORRECT ANSWER, WHAT AM I DOING WRONG?

    asked by Harry on February 2, 2014
  62. chemistry

    While trace impurities of iron and chromium in natural corundum form the gemstones ruby and sapphire, they are basically a binary compound of aluminum and oxygen, with 52.9% Al. Find the empirical formula and give the chemical name for corundum. i really

    asked by minnie on February 20, 2012
  63. Science

    15. Which of the following factors is the most likely explanation for an energy deficit that results in exercise-induced exhaustion. A.Insufficient protein production B.Insufficient mitochondrial function. C.Impair urea elimination. D.Absence of oxygen

    asked by AMGCSTRNBSN on March 29, 2016
  64. science

    Which of the following factors is the most likely explanation for an energy deficit that results in exercise-induced exhaustion. A.Insufficient protein production B.Insufficient mitochondrial function. C.Impair urea elimination. D.Absence of oxygen

    asked by Tessy on January 23, 2016
  65. Science Question PLEASE ANSWER QUICK! :D

    27. What is the function of the astmosphere's ozone layer? A. shields Earth from harmful solar radiation B. provides the oxygen needed by human life C. protects Earth from sun's heat*** D. removes pollution from the atmosphere *** = What I think is the

    asked by random idiot on January 11, 2018
  66. psychology

    Why is the placenta unique as to its origin? A it's the first fetal structure to develop B it's allows the mixing of oxygen and nutrients between mother and child C its develops from material supplied both by the mother and the fetus D it provides the

    asked by tzeni on January 7, 2009
  67. chem(REALLY NEED HELP )

    calculate the total mass of carbon dioxide gas produced when you burn 1000ml of gasoline Density of heptane = 0.684g/ml density of octane =0.703g/ml a) Calculate the mass of carbon dioxide produced from combustion of heptane C7H16 + O2 ------- CO2 + H2O

    asked by christie on December 3, 2014
  68. Statistics

    In a prior sample of U.S. adults, the Center for Disease Control (CDC), found that 10% of the people in this sample had pinworm but the margin of error for the population estimate was too large. They want an estimate that is in error by no more than 1.5

    asked by Sara on March 12, 2016
  69. language arts

    what are simple subjects ang simple predicates help me work due monday The simple subject is the one word that is doing the action. The simple subject in these examples are CAPITALIZED. LASSIE came home. ONE of my brothers plays football. Have YOU ever

    asked by autumn on August 13, 2005
  70. Chemistry

    You have found that 14.37mL of 0.162M sulfuric acid reacts with exactly 20.00mL of barium hydroxide solution of unknown concentration. What is the molarity of the barium hydroxide solution? Round your answer to 3 decimal places and include units. I know

    asked by Micah on May 31, 2017
  71. Chemistry

    (1)Aluminum reacts with oxygen to produce aluminum oxide according to the following reaction: 4Al(s) + 3O2(g) → 2Al2O3(s) Calculate the moles of Al2O3 produced when the reaction is performed with 31.06 g of each reactant. (2)Nitrogen dioxide reacts with

    asked by WCU cats on March 7, 2013
  72. planning

    In three to five sentences, answer the following questions. 1.Where do I picture myself five years from now? What am I doing? Where am I going? 2.How do the course choices (both elective and required) that I make today lead to the fulfilment of this dream?

    asked by Anonymous on August 30, 2010
  73. Chemistry

    Consider the following balanced equation: 2N2H4(g)+N2O4(g)→3N2(g)+4H2O(g) Complete the following table showing the appropriate number of moles of reactants and products. If the number of moles of a reactant is provided, fill in the required amount of the

    asked by Carter on March 6, 2014
  74. Finance

    I have a number of questions for a finance assignment that is meant as a review for our final. However my final is being written earlier than the rest of the class so the answers aren't up yet. I was hoping someone could answer two or three of the

    asked by Brian on April 20, 2010
  75. Chemistry

    An ideal monatomic gas initially at 298 K and 1 atm pressure is expanded from a volume of 1 liter to 2 liters. Consider separately isobaric, isothermal and adiabatic expansions to accomplish this. In each case, calculate the following: a) The final

    asked by Marcus on January 31, 2011
  76. Chemistry ( I NEED HELP, PLEASE!!!!, IM DESPERATE)

    Sodium peroxide reacts vigorously with water to produce sodium hydroxide and oxygen. The unbalanced equation is Na2O2(s) + H2O(ℓ)→ NaOH(aq) + O2(g). What mass of O2 is produced when 81 g of Na2O2 react?

    asked by Farrell on March 12, 2015
  77. Chemistry

    Iron (II) ions can be precipitated from the following reaction: 4Fe(OH)+(aq) + 4OH-(aq) + O2(g) + 2H2O(l) --> 4Fe(OH)3(s) How many grams of oxygen gas will be needed to precipitate the iron contained in 125mL of 0.085M Fe(OH)+ solution?

    asked by Bekah on September 28, 2011
  78. chemistry

    8750 g of a compound which contains only carbon, hydrogen, and nitrogen were burned in oxygen to produce, 2.1930 g of N2O4 , and 2.2900 g of water. What is the empirical formula of the compound? (Hint: do carbon by difference)

    asked by joan on September 21, 2011
  79. chemistry

    Fumaric acid, which occurs in many plants, contains, by mass, 41.4% carbon, 3.47% hydrogen, and 55.1% oxygen. A 0.050-mol sample of this compound weighs 5.80 g. The molecular formula of this compound is can you show me the formula

    asked by Tierney on October 6, 2009
  80. Science

    Hello van some one show me how to draw a dot and cross diagramm for 1 lithium atom and 1 fluorine atom(Lif) and also a diagram for 1 magnesium atom and 1 oxygen atom (MgO) Thankyou Paul.

    asked by Paul on March 28, 2011
  81. Chemistry

    In an experiment, a mixture of two gases occupies a volume of 3.00 L at a temperature of 22.5 degree centigrade. The mixture contains 14.0 g of water, 11.5 g of oxygen, and 37.3 g of nitrogen. Calculate the total pressure and the partial pressure of each

    asked by Aaqib Zaman on November 15, 2014
  82. Chemistry

    Explain why this reaction is not feasible:CH3CHO^-Na^+ + CH3C(CH3)2Cl=CH3CH2O(CH3)2OCH3. ;->Becos of ion charge of Oxygen and Na in the cpd reacting with non ionic cpd

    asked by Destiny on June 5, 2014
  83. chemistry12_2016-1

    In one process, 4.0 grams of sulphur was brunt in 48.0 decimeter cube of oxygen measured at RTP. (A) What is the limiting reactant in this reaction? (B) Calculate the volume of sulphur dioxide formed at RTP.

    asked by Anonymous666_4 on March 27, 2016
  84. Chemistry I

    A scuba diver's tank contains 0.23 kg of O2 compressed into a volume of 3.5 L. (a) Calculate the gas pressure inside the tank at 11°C. ________atm (b) What volume would this oxygen occupy at 20°C and 0.92 atm? ________L what are the formulas for this

    asked by Elizabeth on May 18, 2009
  85. Chemistry

    Which of the following statements is true regarding a covalent bond in CO? Valence electrons are transferred to the oxygen atom. The bond length is less than the sum of the two atomic radii. Bonding electrons are stationary in the CO molecule. all of the

    asked by Lue on April 17, 2014
  86. Chemistry ( I NEED HELP, PLEASE!!!, IM DESPERATE!)

    Sodium peroxide reacts vigorously with water to produce sodium hydroxide and oxygen. The unbalanced equation is Na2O2(s) + H2O(ℓ)→ NaOH(aq) + O2(g). What mass of O2 is produced when 81 g of Na2O2 react?

    asked by Farrell on March 12, 2015
  87. science

    Oxygen is prepared by heating KClO3. (i) What weight of O2 is obtained from 3.00 g KClO3? (ii) What is the volume of O2, measured at standard conditions? (iii) What volume does the O2 occupy if collected over water at 0.961 atm

    asked by reagan on October 7, 2018
  88. Physical Science

    An iron fence is left unpainted, and it reacts with the oxygen in the air, forming rust. The formation of rust is an oxidation-reduction reaction, but it is also an example of a(n) _________ reaction My answer is synthesis

    asked by Steve on October 13, 2016
  89. Chemistry

    When a mixture of 10.0 g of acetylene and 10.0 g of oxygen is ignited, a complete combustion of the reactants takes place. What is the limiting reagent of this reaction? How many grams of each of the reactants and products are present at the end of the

    asked by Destiny on October 10, 2011
  90. Chemistry

    Gasohol contains ethanol (C2H4OH)(l), which when burned reacts with oxygen to produce CO2(g) and H2O(g). How much heat is released when 12.5g of ethanol burns? C2H5OH(l) + 3 O2(g) --> 2 CO2(g) + 3H2O(l) Delta H = -1368kJ

    asked by Keith on May 20, 2010
  91. Chemistry

    A 5.00 g mixture of methane (CH4) and ethane (C2H6) is combusted in oxygen gas to produce carbon dioxide and water. If 14.09 g of CO2 is produced, how many grams of methane was in the original 5.00 g mixture ?

    asked by Ana on January 21, 2015
  92. chemistry

    An explosive whose chemical formula is C3H6N6O6 produces water, carbon dioxide, and nitrogen gas when detonated in oxygen. write the chemical equation for the detonation reaction of this explosive.

    asked by Maria on January 17, 2011
  93. Science

    If oxygen, Carbon dioxide, and xenon gases are heated at 500k with a probable particle speed of 1094 and an average particle speed of 1234, what id the mass of an atom or molcule for each?

    asked by Carolyn on July 20, 2012
  94. 5th grade math

    If you have 78.1% nitrogen,20.9% oxygen,.9% Argon and small amounts of other gases Which graph type would best display the data? Line graph bar graph pie graph stem and leaf plot

    asked by jill on December 3, 2010
  95. chemistry

    I do not understand how to right a balanced equation for the combustion of cellulose in oxygen to produce carbon dioxide and water vapor. I know that cellulose is C6H10O5 but I don't understand how to balance. Thanking you in advance for your help.

    asked by linda on March 27, 2014
  96. Chemistry

    It has been determined that the body can generate 5500 kJ of energy during one hour of strenuous exercise. Perspiration is the body's mechanism for eliminating this heat. How many liters of water would have to be evaporated through perspiration to rid the

    asked by Jamie lee on April 14, 2015
  97. algebra

    Solution A is 25% acid and Solution B is 40% acid. How much of each is needed to make 60 liters of a solution that is 30% acid?

    asked by hanaa on April 13, 2008
  98. algebra

    Solution A is 25% acid and Solution B is 40% acid. How much of each is needed to make 60 liters of a solution that is 30% acid?

    asked by hanaa on April 14, 2008
  99. Physics (please help!!!!)

    Blood pressure is usually reported in millimeters of mercury (mmHg) or the height of a column of mercury producing the same pressure value. Typical values for an adult human are 130/80; the first value is the systolic pressure, during the contraction of

    asked by Anonymous on April 16, 2011
  100. American gov

    16. What ruling did the Supreme Court make regarding flag burning in Texas v. Johnson? (1 point) It is legal to burn flags other than the U.S. flag, but burning an American flag is not free speech because it affects public morale. Burning any sort of flag

    asked by Anonymous on March 30, 2017