1. College Chemistry

    Sulfur trioxide is made from the reaction of sulfur dioxide and oxygen. how many grams of SO3 can be made from the reaction of 1.91g SO2 with 1.29g O2? 2 SO2(g) + O2(g)---> 2SO3(g) a) 2.39g b) 3.20g c) 3.23g d) 4.77g e) 6.46g How would i solve this

    asked by James on May 5, 2010
  2. chem help

    a scuba diver breathing normal air descends 100m of depth, where the total pressure is 11 atm. What is the partial pressure of oxygen that the diver experiences at this depth? Can someone help out on this question? Make a ratio: 11atm/1atm= P/partial

    asked by david on March 19, 2007
  3. Chemistry

    A neutral molecule is identified as a tetrafluoride, XF4, where X is an unknown atom. If the molecule has a dipole moment of 0.63 D, can you give some possibilities for the identity of X? (Select all that apply.) sulfur nitrogen oxygen polonium phosphorus

    asked by Lance on June 18, 2011
  4. chem-speed at STP

    Hi- we were given this question and I have no clue how to figure it out...please help! Which gas molecules have the greatest average speed at STP? [a] SO2( sulfur dioxide) [b] NH3( ammonia) [c] O2( oxygen) [d] N20 (Dinitrogen oxide) Ok, at stp, that means

    asked by ty on May 1, 2007
  5. math

    find the volume of iron required to make an open box whose ,external dimensions are 36 cm *25 cm *16.5 cm, the box being 1.5 cm thick throughout . if 1 cm ^3 of iron weights 8.5 grams , find the weight of the empty box in kilogramsfind the volume of iron

    asked by yasir on March 12, 2016
  6. Chemistry

    I have tied to solve this problem but am stuck. Hoping what I have done so far is accurate but need help in conversion. What mass, in grams, of oxygen gas (O2) is contained in a 10.5 liter tank at 27.3 degrees Celsius and 1.83 atmospheres? Show all of the

    asked by Anonymous on July 24, 2011
  7. Health

    26. When someone is choking you need to perform chest compressions. -False? 31. The female reproductive cell is called an egg. -False? 34. If the egg is not fertilized, then conception occurs. -False? 45. The embryo is a blood vessel-rich organ that forms

    asked by mysterychicken on November 29, 2011
  8. Health

    26. When someone is choking you need to perform chest compressions. -False? 31. The female reproductive cell is called an egg. -False? 34. If the egg is not fertilized, then conception occurs. -False? 45. The embryo is a blood vessel-rich organ that forms

    asked by mysterychicken on November 28, 2011
  9. macroeconomics

    Could you please help me with these couple of problems? Assume that C=a+(.75)(YD), where YD= Y-T 1. If the autonomous tax increases by 1000, the leakage schedule will shift up by how much? 2. A full employment income, planned aggregate expenditure exceeds

    asked by John on April 21, 2008
  10. science

    Chemical formula : C12,H22,O11 How many carbon atoms are in 1 molecule of sugar? How many hydrogen atoms are in 1 molecule of sugar? How many oxygen molecules are in 1 molecule of sugar?

    asked by Ashlie on November 1, 2011
  11. chemistry

    A mixture of ammonia and oxygen is prepared by combining 0.330 L of NH3 (measured at 0.710 atm and 22°C) with 0.200 L of O2 (measured at 0.740 atm and 51°C). How many milliliters of N2 (measured at 0.740 atm and 100. °C) could be formed if the following

    asked by Libby on December 3, 2014
  12. Chemistry

    Please help me with these! Thanks :) Describe, in detail, how to make 5.5 liters of a 2.5 molar HCl solution from a 10.5 molar HCl stock solution. How many grams of a stock solution that is 85.5 percent H2SO4 by mass would be needed to make 150 grams of a

    asked by Amanda on February 28, 2011
  13. English Help Please!!! Check!!

    Concision Rewrite the sentences using concision techniques (replacing phrases with words, combining sentences, etc.) discussed in class to simply these wordy sentences. 1. Critics cannot avoid employing complex and abstract technical terms if they are to

    asked by Kimberly :( on April 21, 2014
  14. chemistry

    In the reaction O2+2NO->2NO2 what is the ratio of oxygen reacted to nitrogen dioxide produced? Nitrogen monoxide to nitrogen dioxide? We had to calculate the concentration of each, for which I have O2=-1.01x10^-5, NO=-2.03x10^-5 and NO2=2.04x10^-5. I'm not

    asked by alyssa on March 12, 2015
  15. Finance

    Thomson Media is considering some new equipment whose data are shown below. The equipment has a 3 year tax life and would be fully depreciated by the straight line method over 3 years but it would have a positve pre-tax salvage value at the end of year 3,

    asked by Nick on April 12, 2011
  16. Finance

    Thomson Media is considering some new equipment whose data are shown below. The equipment has a 3 year tax life and would be fully depreciated by the straight line method over 3 years but it would have a positve pre-tax salvage value at the end of year 3,

    asked by Nick on April 12, 2011
  17. chemistry

    Which of the following pairs of molecules have the same oxidation number for carbon? CO and CO2 CH4 and CCl4 C6H12O6 and C(s) H2CO and COCl2 Carbon always has an oxidation number of +4 What mass of CuSO4.5H2O would you need to prepare 250.0 mL of a 0.250 M

    asked by Anonymous on July 3, 2011
  18. Science

    the active ingredient in the alergy medication claritin contain carbon,hydrogen,chloride,nitrogen,and oxygen its molecules formula is C22H23ClN2O2.the standard adult gosage utizies 1.572*10^19 molecules of the spicies determine the mass gosage of the

    asked by Kriatian ferrer on February 2, 2016
  19. Science

    When oxygen is present a. most cells utilize aerobic cellular respiration. b. most animal cells will carry on fermentation and produce lactic acid. c. most bacteria and yeasts carry on fermentation. d. two ATP molecules are produced for each glucose

    asked by Dave on February 27, 2007
  20. I NEED HELLLLPPPPP!!!!

    Ive been looking all over and i cant find out if there is such thing as a carbon dioxide deficiency in hemoglobin (red blood cells)...i know theres an oxygen one called anemia but i really need one for carbon dioxide as a waste from the body....plz plz plz

    asked by said so on April 22, 2007
  21. science

    bornite(Cu3FeS3)is copper ore used in the production of copper.when heated,the following reaction occurs.2CuFeS3(s)+7oxygen(g)=6Cu(s)+2FeO(s)+6SO2(g)..IF 3.88 metric tons of bornite is reacted with excess oxygen and the process has 75.6 percent yield of

    asked by mushibwe lameck c on June 13, 2011
  22. Biology

    Of the following, which is the most likely consequence of a manufacturing plant dumping its chemical waste into a nearby stream? increased oxygen levels in the water decreased flow rate of the stream loss of a keystone species an algal bloom

    asked by Steve on September 2, 2015
  23. chem

    For this problem, will someone please check my answer? How many grams of oxygen are produced in the decomposition of 5.00g of potassium chlorate? KClO3(s)--->KCl(s)+O2(g) [the equation may not be balanced] My answer is 1.96 g of O2. The balanced equation

    asked by Fiona on March 22, 2007
  24. math

    A factory packs water in half liter, one liter, two liter and five bottles. On a certain day, the factory packed 20 840 bottles and of water .out of these, 8120 were half liter bottles and 3960 were two liters bottles. One liter bottles were 2000 more than

    asked by kgk on January 6, 2015
  25. chem

    A sample containing 6.40 g O2 gas has a volume of 15.0 L. Pressure and temperature remain constant. a. What is the new volume if 0.600 mole O2 gas is added? b. Oxygen is released until the volume is 12.0L. How many moles of O2 are removed? c. What is the

    asked by tracy on November 1, 2012
  26. chemistry

    N2 + 2 O2 ---> 2 NO2. Suppose 31.25 g of N and 44.0 g of oxygen react. A. Calculate the mass of Nitrogen dioxide formed. B. Which reactant is the limiting reactant? C. Calculate the mass of the excess reactant left after the reaction. D. Find the % yield

    asked by Stacy on October 30, 2013
  27. Chemistry

    How many moles of oxygen, O2, are in a sample containing 1.43 x 10^24 molecules of O2? A) 0.421 mol B) 2.37mol C) 4.74mol D) 8.61 x 10^47mol E) 1.16 x 10^-48mol So I did the number divided the number of molecules of O2(1.43 x 10^24) by Avogadro's

    asked by Anonymous on October 6, 2018
  28. chemistry

    Ammonia and oxygen react to form nitrogen and water. 4NH3(g)+3 O2(g)-2N2(g)+6H2O(g) a.How many grams of O2 are needed to react with 8.00 mol NH3? 8.00 mol NH3 x42.094/4 mol NH3 x32.00 O2/1 mol O2=269gO2

    asked by Ana on June 25, 2010
  29. chemistry

    Ammonia and oxygen react to form nitrogen and water. 4NH3(g)+3 O2(g)-2N2(g)+6H2O(g) a.How many grams of O2 are needed to react with 8.00 mol NH3? 8.00 mol NH3 x42.094/4 mol NH3 x32.00 O2/1 mol O2=269gO2

    asked by Ana on June 25, 2010
  30. Chem

    i need a bit of help finding out how to do this problem. just tell me how and ill take it from there. Q.A compound containing carbon, hydrogen, and Oxygen is found to be 40% carbon and 6.7% hydrogen by mass. the molar mass of this compound is between 115 g

    asked by ricky bobby martin on November 13, 2017
  31. Science

    i need a bit of help finding out how to do this problem. just tell me how and ill take it from there. Q.A compound containing carbon, hydrogen, and Oxygen is found to be 40% carbon and 6.7% hydrogen by mass. the molar mass of this compound is between 115 g

    asked by Marty Mc Fly on November 13, 2017
  32. Science

    1. The combination of sulfur dioxide, nitrogen oxide, and atmospheric moisture creates A. drinking water. B. smog. C. pesticides. D. acid rain. D? 2. Another name for unicellular organisms that dominated Earth up to the Precambrian time is A. eukaryotes.

    asked by Beatrice on January 30, 2014
  33. chemistry

    Question about titration calculations in analysis of antacids lab. We did a lab yesterday with antacids, HCl and NaOH and I'm having trouble doing the calculations. The information known is the following: 1)0.10M NaOH 2)0.10M HCl 3)Mass of Antacid .22g

    asked by Mindy on March 11, 2010
  34. science

    14.If a forest ecosystem is removed through clear-cutting, many species of organisms that lived in that ecosystem disappear. Their loss is due to ________________________. 15.When fossil fuels are burned, they produce ________________, the main greenhouse

    asked by shynice on December 15, 2015
  35. Science

    14.If a forest ecosystem is removed through clear-cutting, many species of organisms that lived in that ecosystem disappear. Their loss is due to ________________________. 15.When fossil fuels are burned, they produce ________________, the main greenhouse

    asked by Peter on January 5, 2014
  36. chem

    can someone plz help me with this? What mass of sucrose (C12H22O11) must be dissolved to make 460 mL of a 1.10M solution? thanks concentration= molessolute/volume moles solute=conc*volume massSolute/molmassSolute=conc*volume

    asked by Mary on April 16, 2007
  37. chemistry

    Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3). How much limestone in kilograms is required to completely neutralize a 5.8×109 L lake with a pH of 5.6? thanks

    asked by amy on December 5, 2010
  38. Physics (just checking it)

    q:The electricity revised at an electric substation has a potential difference of 2.80 10^5V, if the required output is 440 V. what should be the ratio of the turns of the step-down transformer? a: 28000/440= 636

    asked by BAdams on June 4, 2008
  39. Chemistry

    3. Using Bohr’s model of the atom, calculate the energy required to move an electron from a ground state of n = 2 to an excited state of n = 3. Express your answer in both J/photon and kJ/mol.

    asked by Brad on April 24, 2013
  40. chem

    The minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164kJ/mol. Calculate the longest wavelenght visible to the human eye

    asked by natash on October 28, 2008
  41. DIFFERENTIATION

    An open topped taking tin with a volume of 864 cm is to be constructed with a square base and vertical sides. Find the least amount of tin plate required.

    asked by Anonymous on May 26, 2015
  42. Chem

    Suppose that you start with 1000000 atoms of a particular radioactive isotope. how many half-lives woruld be required to reduce the number of undecayed atoms to fewer than 1000?

    asked by Shay on October 20, 2014
  43. SOC 302

    An Environmental Impact Statement (EIS) is a/an A:assessment required by National Environmental Policy Act (NEPA) to demonstrate that a proposed project does not harm the environment.

    asked by Lovely34 on November 13, 2017
  44. phyics/moon

    The acceleration due to gravity on the Moon's surface is one-sixth that on Earth. What net force would be required to accelerate a 20-kg object at 6.5 m/s2 horizontally on the moon? A) 1.3 N B) 20 N C) 33 N D) 120 N E) 130 N

    asked by sam on June 14, 2010
  45. Chemistry

    Calculate the molarity of 25.00ml H2SO4 solution if 32.48ml of 0.1068M NaOH is required to titrate? Balanced equation is H2SO4(aq)+2NaOH(aq)=Na2SO4(aq)+2 H2O (l)

    asked by Jake on October 22, 2014
  46. ap chemistry

    What amount of energy is required to com- pletely ionize 26.9 grams of carbon atoms in the gas phase (C(g)) if the ionization energy of C(g) is 1086 kJ/mole? Answer in units of J

    asked by cheri on April 15, 2013
  47. Chemistry

    hey guys can you please help me with this question. Identify the steps required to standardize a 0.1M HCl stock solution with sodium carbonate: Na2CO3, mol wt. = 105.99 g/mol. thank you

    asked by Josephine on August 22, 2007
  48. physics

    A tapering wooden telegraph pole is 15ft long and its center of gravity is 6ft from one end. It weighs 400lbs. What force is required to lift each end?

    asked by bird on January 19, 2011
  49. physics

    How many joules of energy are required to heat 2 L of water from 25 C to 100 C? I looked up that the specific heat is 4200 J/kgK and i keep getting Q to equal 630000 but my homework website says that's wrong.

    asked by Sarah on October 20, 2016
  50. Physics

    What minimum force is required to drag a crate (m = 40 kg) across a floor (co-efficient of kinetic friction = 0.6) if the force is applied at a 45 degree angle upward from the horizontal? Help ASAP please!!

    asked by Anonymous on October 13, 2016
  51. Georgia State History

    Officials whose jobs are not provided for in the constitution but are required by law are known as__. A. constitutional officers B. secretaries of state C. deputies ** D statutory officials please check my answer :)

    asked by please help on January 29, 2016
  52. chemistry

    how many joules are required to heat a frozen can of juice (360 grams) from -5C (the temperature of an overcooled refrigerator to 110C) the highest practical temperature within a microwave oven?

    asked by Kelly on May 13, 2010
  53. physics

    Calculate the magnitude of the force FM required of the "deltoid" muscle to hold up the outstretched arm shown in the figure below. The total mass of the arm is 2.8 kg and θ = 11°. d=12cm D=24cm

    asked by Rpbert on October 29, 2016
  54. Chemistry

    The problem on my homework is: What mass in grams of iron metal is required to react with 2.50 L of .1500 M of sulfuric acid to produce 18.35g of iron (III) sulfate? please help!

    asked by Lauren on May 23, 2010
  55. PHYSIC

    What current is required in the winding of a long solenoid that has 1000 turns uniformly distributed over a length of 0.4 m, to produce at the center of the solenoid a magnetic field of magnitude 1.0 x 10 -4 T?

    asked by KAIT on September 3, 2011
  56. PHYSIC

    What current is required in the winding of a long solenoid that has 1000 turns uniformly distributed over a length of 0.4 m, to produce at the center of the solenoid a magnetic field of magnitude 1.0 x 10 -4 T?

    asked by KAIT on September 3, 2011
  57. Spanish

    Hi, I would like some tips on what to say when you're talking to a friend about what you're packing & need to buy to go on a trip. This is a conversational piece where it is required that we speak out of context as well (talking about the weekend,

    asked by Nick on May 24, 2014
  58. chemistry

    What is the molarity of a sulfuric acid solution if 30.00mL of H2SO4 is required to neutralize 0.840g of sodium hydrogen carbonate? H2SO4(aq) + NaHCO3(aq) → Na2SO4(aq) + H2O(l)+ CO 2(aq)

    asked by shane on December 4, 2012
  59. Pharmacology

    Amoxicillin suspension 125mg/5ml give ¾ tsp PO bid Disp: 10 day supply 5. How much suspension is required to fill this prescription? 6. What is the amount of mg per dose?

    asked by KI on July 14, 2014
  60. physics

    An 85 kg football player traveling 4.7 m/s is stopped in 1.0 s by a tackler. What is the original kinetic energy of the player? (I tried using 1/2 m v^2 but that doesn't seem to be right. How do I manipulate the formula?) What average power is required to

    asked by brooke on June 19, 2012
  61. History

    Fill in the blanks. Under the Mississippi compromise, any new states formed west of the Mississippi river and north of the Missouri's southern border line were required to be __________.

    asked by Emma on January 27, 2013
  62. college statistics

    assume the population of heights of female college students mean of 64.37 inches standard deviation of 6,26 in and random sample of 74 find p(x>65.25)B. find p(x>65.25)c. why is formulas required to solve a different than c.

    asked by melba on June 14, 2012
  63. physics

    A large stone is dragged 15m over a frozen lake. If the coefficient of friction between the stone and the ice is 0.1 and the whole process takes 8 seconds, how much work is done and how much power is required?

    asked by Gazza on June 12, 2011
  64. maths

    Find the periodic payment R required to amortize a loan of P dollars over t years with interest earned at the rate of r %/year compounded m times a year. P=30,000 r = 8 t = 12 m =1

    asked by luvena on December 21, 2014
  65. physics

    A pulley system of 4 pulleys is used to raise a loan of mass 50kg vertically,if its effeciency is 80%,determine the minimum effort required to raise the load(g=10ms-2)?

    asked by Abba on March 16, 2017
  66. Physics

    This is a pretty simple physics problem, but I do not know how to go about it. How do I: Show that the time required for a projectile to reach its highest point is equal to the time for it to return to its original height?

    asked by Jeremy on January 24, 2010
  67. Chemistry

    Calculate the amount of heat required to raise the temperature of a 65-g sample of water from 32∘C to 65∘C. (The specific heat capacity of copper is 4.184 J/g∘C.) Express your answer in Joules.

    asked by Rachel on September 19, 2015
  68. math

    the space in front of a temple is of length 12 metres and breadth 9 meters .on this space,square tiles 75cm are to be fitted find the number of titles required

    asked by aarish on November 24, 2010
  69. physics

    A person pushes a 14.5 kg lawnmower at constant speed with a force of 88 N directed along the handle, which is at an angle of 45o to the horizontal. What is the force required to accelerate it from rest to 1.5 m/s in 2.5 seconds?

    asked by Steve on October 11, 2008
  70. Chemistry

    What amount of energy is required to completely ionize 21.5 grams of carbon atoms in the gas phase (C(g)) if the ionization energy of C(g) is 1086 kJ/mole? Answer in units of J

    asked by Peter on October 18, 2012
  71. physics

    a trolley of mass 40kg us pushed up a hill of height 10m at an angle of 20 degree. calculate the force required to reach this height. how do i complete this question?

    asked by jordan on September 25, 2014
  72. chem

    How much heat is required to heat 0.1 g of ice at −30 C to steam at 100 C? Use the approximate values below for your calculation. cice = 2 J/g · C csteam = 2 J/g · C cwater = 4 J/g · C Hvap = 2, 260 J/g Hfus = 340 J/g

    asked by please help ! on March 2, 2012
  73. computers

    If a term paper consisted 42 pages,each containing 40 lines of 100 symbols each (counting each space as symbol)was to be encoded using unicode, how many bytes of storage space would be required?

    asked by Ryan on October 25, 2009
  74. chemistry

    How much heat is required to heat 0.1 g of ice at −30 C to steam at 100 C? Use the approximate values below for your calculation. cice = 2 J/g · C csteam = 2 J/g · C cwater = 4 J/g · C Hvap = 2, 260 J/g Hfus = 340 J/g

    asked by please help ! on March 2, 2012
  75. chemistry - titration question

    please help me with this question! a 1g sample of naoh contaminated with na2co3 is titrated with 0.500MHCl, and it is found that 46.5mL of HCl are required for neutralization. Find the percentage by mass Na2Co3

    asked by alex on April 22, 2008
  76. Math

    A certain medicine requires 10 mg per 40 kg of weight. How much medicine is required for a patient that weighs 203 pounds? Round answer to the nearest 10th. Use Unit Abbreviations for Units

    asked by chirssy on February 11, 2017
  77. history

    When a government lifted price controls after the war, prices a. remained about the same b. rose faster than wages c. fell to prewar levels d. required government support B?

    asked by y912f on May 27, 2009
  78. physics

    A 100Kg stone is dragged 15m over a frozen lake. If the coefficient of friction between the stone and the ice is 0.1 and the whole process takes 8 seconds, how much work is done and how much power is required?

    asked by Gazza on June 12, 2011
  79. Information Technology Principles

    If a term paper consisted 42 pages, each containing 40 lines of 100 symbols each (counting each space as a symbol), was to be encoded using Unicode, how many bytes of storage space would be required?

    asked by saqer on April 6, 2011
  80. Representing Text

    If a term paper consisted 42 pages, each containing 40 lines of 100 symbols each (counting each space as a symbol), was to be encoded using Unicode, how many bytes of storage space would be required?

    asked by lj on April 5, 2011
  81. st.xavier

    Determine the horizontal force P required to start the movement of the 200 lb blockup the 300inclined surface. The static coefficient of friction between the inclined surface and the block is ms = 0.25.

    asked by pankaj on September 16, 2013
  82. physics help please!!!

    What is the angular momentum of a 2.5 kg uniform cylindrical grinding wheel of radius 19 cm when rotating at 1200 rpm? And how much torque is required to stop it in 5.7 s? Need help with step-by-step explanation.

    asked by Anonymous on March 25, 2010
  83. physics

    the floor of a lorry is 3m high, a plank 5m long is used as an inclined plan to raise some leading the maximum effort required to raise 200N load up the plane

    asked by mike on June 13, 2017
  84. physics

    Agalvanometer of resistance 25 ohmes shows full scale deflection for current​ of 10mA, to convert it into 100 V range voltmeter , the required series resistance is

    asked by Ratnesh upadhyay on March 22, 2017
  85. physics

    the floor of a lorry is 3m high, a plank 5m longis used as an inclined plan to raise some leading the maximum effort required to raise 200N load up the plane

    asked by mike on June 13, 2017
  86. Maths

    A closed rectangular wooden box has external dimensions 17x12x10. If the wood is 1cm thick, calculate the volume of wood required to make it. (All measurements are in Cm)

    asked by Jiskhaa on January 16, 2012
  87. Math amortization payments

    What amortization payment would be required every six months at 14% interest to pay off a loan that is $35,000 with in four years. answer needs to be rounded to the nearest cent. please check my answer thanks :) $5,861.37

    asked by Anonymous on November 14, 2007
  88. math

    0.224g sample that contained only bacl2 and kbr required 19.7ml of 0.1M agn03 to react the end point. Calculate the percent of each compound present in the sample

    asked by Fai on December 21, 2013
  89. math

    A certain medicine requires 10 mg per 10 kg of weight. How much medicine is required for a patient that weighs 273 pounds? Round answer to the nearest 10th. Use Unit Abbreviations for Units.

    asked by chas on February 10, 2017
  90. Chemistry

    27) What volume of benzene (C6H6, d= 0.88 g/mL, molar mass = 78.11 g/mol) is required to produce 1.5 x 103 kJ of heat according to the following reaction? 2 C6H6(l) + 15 O2(g) ¨ 12 CO2(g) + 6 H2O(g) ƒ¢H‹rxn = -6278 kJ

    asked by Jennifer on December 8, 2012
  91. physics

    A block and a tackle system of 4 pulley is used to raise 150g vertically upward if the efficiency is 80% determine the minimum effort required to raise the load if g=10ms-2

    asked by Esther on February 6, 2018
  92. physics

    moving beltway at an airport has a speed v1 and a S length L. A woman stands on the beltway as it moves from one end to the other, while a man in a hurry to reach his flight walks on the beltway with a speed of v2 relative to the moving beltway. (a) What

    asked by anonymous on May 23, 2016
  93. chemistry

    The pH of a solution prepared by mixing 45 mL of 0.183 M KOH and 65 mL of 0.145 M HCl is i solved it but my answer is wrong. the right one is 1.97. am i missing a step? moles of HCl left over = (moles of HCl) – ( moles of KOH) moles of HCl left over =

    asked by ben on November 23, 2010
  94. science

    how do i balance this equation: sodium hydroxide reacting with sulfurous acid [1 mol sulfurous acid reacts with 2 moles hydroxide ion] my hydrogens aren't balancing right 2 NaOH + H2SO3 -> Na2SO3 + 2 H2O ah thx, i accidently wrote H3O Why are oxygen tanks

    asked by Dan on October 19, 2006
  95. chemistry

    Aluminum metal reacts with oxygen gas (O2) to form aluminum oxide. a. Write a balanced equation for this oxidation-reduction reaction. (In this problem you need not worry about the physical state of the reactants or product.) 2Al+3O2=2Al2O3 b. which

    asked by krystal on February 15, 2012
  96. Soil Chemistry

    Gasoline producers add oxygenated chemical compounds to reduce the amount of carbon monoxide produced when the fuel is burned. Methyl t-butyl ether (MTBE) is one such oxygenate that is no longer used because of health and environmental concerns. what are

    asked by John on July 5, 2014
  97. Chemistry

    How many moles of Fe2O3 are required to produce 38.4 moles of Fe?

    asked by Joseph on September 25, 2011
  98. home economics

    minerals required in very small amounts are known as _ _ _ _ _ minerals!

    asked by lisa on September 5, 2009
  99. Documents

    What does it mean by Enclosed Documents? documents that I am going to send or that are required

    asked by Amy~ on January 13, 2011
  100. chemistry

    A mixture of gases has the following partial pressure for the component gases at 20 degrees Celsius: oxygen 180.0 torr, nitrogen 3200 torr, and hydrogen 246.0 torr. Calculate the pressure of the mixture.

    asked by Abby on November 6, 2014