1. Statistics Homework Check

    Hi! I had this one last question on my homework that I wasn't sure about, but, I need someone to check this for me and see if this is right. Thanks so much! Question: The study that looked at prevalence of various appliance in homes in 2001 made a

    asked by Becky on September 15, 2014
  2. Statistics

    Hi! I had this one last question on my homework that I wasn't sure about, but, I need someone to check this for me and see if this is right. Thanks so much! Question: The study that looked at prevalence of various appliance in homes in 2001 made a

    asked by Beck J on September 16, 2014
  3. Statistics Homework Check

    Hi! I had this one last question on my homework that I wasn't sure about, but, I need someone to check this for me and see if this is right. Thanks so much! Question: The study that looked at prevalence of various appliance in homes in 2001 made a

    asked by Becky on September 16, 2014
  4. chemistry ap

    Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 NO2(g) + H2O(ℓ) −→ 2 HNO3(ℓ) + NO(g) If 734 L of NO2 gas react with water, what volume of NO gas will be produced? Assume the gases are measured under the same

    asked by chem on April 4, 2015
  5. Chemistry

    1 N204(l) + 2 N2H4(l) --> 3 N2(g) + 4 H2O(g) If you start with: 5.0 x 10^4 g hydrazine (N2H4) "in the tank": 1) How many moles of nitrogen can be created (assuming 100% yield)? 2) How many moles of water can be produced? 2) What mass of dinitrogen

    asked by Lauren K. on November 24, 2010
  6. Math

    The price of a gallon of unleaded gas was $2.86 yesterday. Today, the price fell to $2.81 . Find the percentage decrease. Round your answer to the nearest tenth of a percent.

    asked by Nayomi on January 29, 2018
  7. Math

    Christopher mixes the letters s, e, l, e, c, t, e, and d thoroughly. without looking, allen draws one letter. expressed as a fraction, decimal, and percentage, what is the probability that allen will not select a consonant? A. 3/8 , 0.375, 37.5% B. 3/5 ,

    asked by Josh on May 21, 2018
  8. anatomy

    How is the percentage of body surface area affected by burns determined? A. Depth of burn B. Type of burn C. Rule of nines D. Amount of hair singed B

    asked by Anonymous on October 29, 2017
  9. physics

    how much would you have to raise the temperature of a copper wire(originally at 20degree celcius) to increase its resistance by 15%? express your answer in percentage.note a=0.0068per degree celcius

    asked by Anonymous on December 5, 2017
  10. MATHS

    please help me ...Experiments show that radium at rate proportional to the amount of radium present at the moment . if half life is 1590 years what percentage will disappear in one year ??

    asked by NOEL on September 26, 2014
  11. Math

    A spherical balloon expands when it is taken from the cold outdoors into a warm house. If the surface area increases by 50% (factor of 1.50), by what percentage does the radius of the balloon change? a)7.7% b)50% c)100% d)75% e)22%

    asked by Johnny on September 8, 2010
  12. Math-Algebra 1

    The price of a gallon of unleaded gas has dropped to $2.80 today. Yesterday's price was $2.87 . Find the percentage decrease. Round your answer to the nearest tenth of a percent.

    asked by EmilyS. on July 15, 2011
  13. math

    a man buys an item from delhi 10% cheaper than that at merath, incurs loss of rs. 160, but on selling the item profits rs.240. calculate the profit percentage.

    asked by alex on October 31, 2011
  14. 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
  15. government and politic

    the percentage of people between the ages of eighteen and twenty who are registered to vote has dropped much more than that of people aged sixty-five and over. Does this indicate that voting turnout will continue to decline in the future?

    asked by Anonymous on October 19, 2008
  16. Chemistry

    H3C6H5O7(aq) + 3 NaHCO3(aq) ¨ Na3C6H5O7(aq) + 3 H2O(l) + 3 CO2(g) How do you go about calculating theoretical yield of carbon dioxide from 1.00g of sodium bicarbonate andthe percentage yield

    asked by Jo on February 28, 2012
  17. math

    Explain why each survey question might lead to an erroneous conclusion 20. In a recent article, the author states that 71% of adults do not use sunscreen. Although 71% is a large percentage, explain why it could be misleading.

    asked by Wayne on November 18, 2012
  18. College Stats

    the average purchase per customer is 42 with a standard deviation of 4.36. using Chebysevs theorem what percentage of people will make a purchase between 54 and 30 I got 94.7 percent but i am unsure if its the correct answer can anyone verify this for me

    asked by Alex on January 20, 2009
  19. Chemistry

    If I have 0.17g of Mg and 0.10g of O, and I am asked to find the empirical formula for magnesium oxide, is the following the right way to go about it? Convert g-> mol 0.17g=0.01mol Mg 0.10g=0.01mol O Divide by smallest mole amt. (0.01mol) 0.01mol/0.01mol=1

    asked by Anonymous on October 13, 2009
  20. Science

    What salts are there within potato cells and what percentage of salts are there in them?

    asked by Rrezarta on November 20, 2010
  21. American Gov

    What percentage of voters are young voters? 18-25 of age?

    asked by Jial on July 5, 2011
  22. Math

    Out of 124 questions I missed 39. what percentage is that out of the 124?

    asked by Marquis on May 1, 2013
  23. percents

    Dealer sold 26 of 34 boats. What percentage was not sold?

    asked by Casey on February 15, 2012
  24. math

    There are three natural numbers. The first and second are less than the third by 40 % and 50 % respectively. what percentage of the second number is the first number How to do best way help me

    asked by vipul on June 26, 2016
  25. chemistry

    calculate the percentage copper in copper 2 nitrate

    asked by Anonymous on September 19, 2013
  26. statistics

    what is the percentage of the area under the curve is above the mean of the normal curve

    asked by Anonymous on October 19, 2014
  27. Finance

    National Telephone and Telegraph (NTT) Company common stock currently sells for $60 per share. NTT is expected to pay a $4 dividend during the coming year, and the price of the stock is expected to increase to $65 a year from now. Determine the expected

    asked by Anonymous on December 16, 2008
  28. Chemistry

    How does the three dimensional structure of SP3 bonds of Carbon, Nitrogen, Oxygen and Fluorine cause them to form polar or non-polar molecules? The answer must include a 3d diagram of the molecules, and a discussion of the effect of their electron

    asked by Carl on November 16, 2017
  29. fundinjobo high science

    a mass of 80 grams of hydrogen gas is heated with nitrogen gas to produce ammonia gas .what is the mass of ammonia that will be produced

    asked by makhosazane on August 14, 2014
  30. Chemistry

    What is the total pressure of gas in a propane tank if propane has a partial pressure of 33.1 atm, nitrogen’s is 1.11 atm, and oxygen’s is 0.27 atm?

    asked by Anonymous on May 15, 2018
  31. Chemistry

    why is oxygen important for life? Why is Nitrogen important for life? please help me :D

    asked by please help please on November 30, 2011
  32. science

    Why is oxygen important for life? Why is Nitrogen important for life? please help me :D

    asked by Anonymous on November 30, 2011
  33. physics

    The length l of a simple pendulum is about 0.5m, and can be measured within 1mm. what accuracy is required in the measurement of periodic time T of 100 oscillations if the error in l and T are to produce equal percentage in the calculation of acceleration

    asked by ridhi on April 20, 2012
  34. Chemistry

    Ammonia is formed by reacting nitrogen and hydrogen gases. How many liters of ammonia gas is formed from 13.7 L of hydrogen gas at 93C and pressure of 40 kPa?

    asked by dale on April 6, 2010
  35. chem. mix of boyles and charles law

    The volume of a scuba tank is 10.0L.It containes a mixture of nitrogen and oxygen at 290.atm.what volume of this mixture could the tank supply to a diver at 2:40 atm?

    asked by nene on April 28, 2013
  36. Chemistry

    1 N204(l) + 2 N2H4(l) --> 3 N2(g) + 4 H2O(g) If you start with: 5.0 x 10^4 hydrazine (N2H4) "in the tank": 1) How many moles of nitrogen can be created (assuming 100% yield)? 2) How many moles of water can be produced? 2) What mass of dinitrogen tetroxide

    asked by Lauren K. on November 23, 2010
  37. Nutrition

    You decide to perform proximate analysis on a sample from your best friend's diet. Most abundant component(s) in nitrogen free extract of diet would be: a) insoluble fibre b) starch c) triglyceride d) Sodium and potassium I know the correct answer is b)

    asked by Ashley on January 14, 2012
  38. 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
  39. Physics

    What is the approximate energy required to raise the temperature of 5 L of air by 160 °C? The volume is held constant. (Assume air almost entirely consists of nitrogen, oxygen, and argon, and that it is initially at 273 K. Use the numerical data found in

    asked by Khalid on December 7, 2011
  40. chemistry

    Which of the following answer choices states a disadvantage of nuclear power generation? (Select all that apply.) production of low and high level radioactive waste production of radioactive tailings from mining uranium air pollution from release of sulfur

    asked by malia on September 23, 2017
  41. Chemistry

    What is the definition of amine salts? My answer is: Amino salts are the neutralization reaction when amine deals with a base and reacts with an acid they mold into them. More in depth the amine salts form when a single pair of electrons on a nitrogen atom

    asked by Lisa on February 16, 2008
  42. science

    3. A section of the Periodic Table of the Elements is shown. Based on the positions of the elements, the two elements that have the most similar chemical properties are — A. calcium and scandium B. calcium and titanium C. titanium and vanadium D.

    asked by Anonymous on March 13, 2014
  43. chemistry

    A chemist wishes to determine the rate of reaction of zinc with hydrochloric acid. The equation for the reaction is: Zn(s) + 2HCl(aq) ---> H2(g) + ZnCl2(aq) A piece of zinc is dropped into 1.00 L of 0.100 M HCl and the following data were obtained:

    asked by Juggy on April 17, 2010
  44. Chemistry

    My teacher hasn't really talked about types of reactions; he's just given us a list of net ionic equations involving water and different elements including Lithium, Sodium, Calcium, Magnesium, Lanthanum, and Potassium to memorize. However, his test

    asked by GP on January 8, 2009
  45. math

    1. Tammy mixes the letters S, C, H, O, O, and L thoroughly. Without looking, Allen draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that Allen will not select a consonant. 5/6, 0.833, 83.3% 2/3, 0.667, 66.7% 1/3,

    asked by mo on May 20, 2018
  46. Chemistry, please help!

    The average human body contains 6.20 L of blood with a concentration of 2.40×10−5 M . If a person ingests 8.00 mL of 13.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion? According to the equation: Fe2+ + 6CN-

    asked by Mason on March 18, 2012
  47. statistics

    You measure 64 children , obtaining a X of 57.28 . The mean is 56 and sd is 8 Slug says that bc this X is so close to the mean of 56 , this sample could hardly be considered gifted. A. Perform the appropriate statistical procedure to determine whether he

    asked by pam on January 31, 2016
  48. Statistics

    Carrie attained a score of 650 on the verbal section of her SAT. The mean grade was a 500 with a standard deviation of 100. What percentage of test takers scored below and above Carrie?

    asked by Juan on October 31, 2014
  49. statistics

    You measure 64 children, obtaining a X of 57.28. Slug says that bc this X is so close to the mean of 56, this sample could hardly be considered gifted . A. Perform the appropriate statical procedure to determine whether he is correct. B. In what percentage

    asked by pam on January 30, 2016
  50. Biology

    1. Given the following concordance rates, is the identified trait primarily genetic or environmental? Explain. MZ Twins DZ Twins Height 0.94 0.44 Measles 0.95 0.87 Migraine headaches 0.80 0.39 Body fat percentage 0.73 0.22

    asked by Susan on August 22, 2013
  51. chemistry

    What is the percentage yield of the reaction of 4.9 g isoamyl alcohol with 4.9 g of acetic acid if 3.5 g of isoamyl acetate product is obtained after distillation? Enter your answer, without a % symbol, to 2 sig. figs.

    asked by sparkles on October 11, 2014
  52. statistics

    A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 4% margin of error at a 99% confidence level, what size of sample is needed?

    asked by Livia on November 28, 2011
  53. math

    A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 8% margin of error at a 95% confidence level, what size of sample is needed?

    asked by zzz on November 14, 2016
  54. math

    Suppose X is a random variable with mean μ and standard deviation σ. If a large number of trials is observed, at least what percentage of these values is expected to lie between μ − 3σ and μ + 3σ? (Round your answer to the nearest whole number.)

    asked by titi on July 3, 2017
  55. MATHS

    experiments show that radium disintegrates at a rate proportional to the amount of radium present at the moment . if half life is 1590 years what percentage will disappear in one year?

    asked by NOEL on September 26, 2014
  56. Chemistry

    The AIDS drug stavudine (also known as d4T) is a weak base and a pKb of 9.8. What percentage of the base is protonated in an aqueous zalcitabine solution containing 565 mg L^-1? What are the steps to solving this problem?

    asked by Anonymous on November 30, 2018
  57. math: 68-95-99.7 rule

    suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000 use the rule to find the percentage of buyers who paid: between $150,000if the standard deviation is $1200

    asked by john on April 30, 2015
  58. chemistry

    A 1.500-g sample of a mixture containing only Cu2O and CuO was treated with hydrogen to prduce 1.252 g pure copper metal. Calculate the percentage composition (by mass) of the mixture.

    asked by kelly on September 26, 2010
  59. math

    Jphn just purchased a plasma t.v. for his living room. He paid $12,00 for a 46-inch television. The regular price of the television was $1,500. What percentage did John save during the sale? I got 20% but I wanted to see if I was right or not.

    asked by bella on June 13, 2013
  60. physics

    Unpolarized light is incident on four polarizing sheets with their transmission axes oriented as shown in the figure, in which θ1 = 27.0° and θ2 = 50.0°. What percentage of the initial light intensity is transmitted through this set of polarizers?

    asked by opp on November 5, 2012
  61. 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
  62. economics

    Wilpen Company, a price- setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U. S. demand for its tennis balls by using the following linear specification: where Q is the number of cans of

    asked by raja on October 16, 2010
  63. College Chemistry 104

    Students are attempting to construct a battery in the laboratory that will light up a light bulb. Compare the following lists prepared by students and determine which student will not be able to successfully build a "battery" that will light up the bulb.

    asked by Claire on May 10, 2013
  64. chem

    Ammonia reacts with oxygen to form nitrogen dioxide and water according to the following equation: 4NH3(g) + 7O2(g) ® 4NO2(g) + 6H2O(g) You react ammonia and oxygen, and at the end of the experiment you find that you produced 27.0 g of water, and have

    asked by mich on November 3, 2009
  65. chemistry

    List the following bonds in order of increasing ionic character. (Enter your answer in the format H-O for the hydrogen-to-oxygen bond in H2O. Use the appropriate symbol to separate substances in the list.) the barium-to-fluorine bond in Ba-F the

    asked by Shawn on November 27, 2012
  66. math

    the inteterst rate on an auto loan im may was 12 3/8%. by september the rate was up to 14 1/4%. how many percentage points did the interest rate increase over the period?

    asked by sara on March 22, 2009
  67. Chemistry

    Bromine has two isotopes, Br- 79 and Br- 81. The relative atomic mass of bromine is 79.9. CALCULATE THE PERCENTAGE of Br-79 atoms in a sample of bromine. PLease help i'm really stuck

    asked by 0oooooooo0 on September 27, 2017
  68. math

    The average summer temperature in Anchorage is 69°F. If the daily temperature is normally distributed with a standard deviation of 7°F, what percentage of the time would the temperature be between 55°F and 76°F?

    asked by Habib on June 1, 2016
  69. math

    the price of tickets were reduced to 20%. the total number of sales of tickets increased by 60%. find the percentage increase of tickets.

    asked by imli on May 12, 2016
  70. Math

    The basketball team has won 21 games and lost 15 games . How many future games can they lose and keep their winning percentage above 0.500?

    asked by TyteAnna on March 26, 2013
  71. 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
  72. chemistry

    N2 + 2O2 -->2 NO2 Suppose 31.25 g of N and 44.0 G of O 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 if 52.3 g

    asked by Andrew on October 30, 2013
  73. Chemistry [Science]

    Oh gosh... I need help, with like everything... [Show all work] Aluminum nitrite & ammonium chloride react to form aluminum chloride, nitrogen gas and water. What amount of aluminum chloride is present after 43g of ammonium chloride have reacted

    asked by Nikki on May 3, 2010
  74. chemistry

    What is the volume of 45.0g of nitrogen monoxide, NO, at 20 C and a pressure of 740 mm Hg? Please someone can check my work is right or not? NO = 14 + 16 = 30 54.0g / 30 = 33.60 L 273K/293K = 0.932 atm 740 mm Hg = 740 torr = 0.974 atm 33.60L x 0.932 x

    asked by Diana on April 28, 2010
  75. holy school

    H2 S + HNO3 --------> NO + H2 O + S 150 g of hydrogen sulfide are dissolved in 3500 mL of water. a. What is the molarity of the hydrogen sulfide solution? b. How many grams of sulfur can be produced from 50 mL of this solution? c. 22.4 L of nitrogen

    asked by mamta on March 3, 2013
  76. 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
  77. 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
  78. 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
  79. Chemistry

    Hi, I was given the reactants for the chemical reaction and I am supposed to write the product. The equation must be balanced. Can someboy please check my work? Thanks :-) 3NaOH + Fe(NO3)3 --> Fe(OH)3 + 3Na(NO3) 2NH3 --> N2 + 3H2 2H2 + o2 --> 2H2O 4Mg +

    asked by Lisa on December 10, 2006
  80. math

    the area of the circle was measured to be 29/30 of it original area.find the percentage error made in measuring area.

    asked by abigail on April 14, 2009
  81. Math

    The tornadoes have won 75% of their games. If they their next 4 games, their win percentage goes up to 80%. How many games have they played right now? (Please explain how to solve this problem)

    asked by Selina on July 20, 2016
  82. Computers

    I am supposed to type out a report, but our Microsoft Office Word program is messed up somehow. I have the letters set to Times New Roman size 8... but they're HUGE!!!!!!!! So big I can only fit about 5 sentences on a page. Also, at the end of every line,

    asked by Jenna on May 11, 2007
  83. ECONOMICS

    1) If the price of a product produced in a competitive market increases, which of the following is most likely to occur in the labor market for workers who produce the product? A) the demand for labor and the number of workers hired both increase B) the

    asked by Booker Perry on July 19, 2012
  84. ECONOMICS

    PLEASE HELP ME WITH THESE!!!!!!!! 1) If the price of a product produced in a competitive market increases, which of the following is most likely to occur in the labor market for workers who produce the product? A) the demand for labor and the number of

    asked by Booker Perry on July 19, 2012
  85. Prob:

    Each month, a sales manager classi¯es his sale people as low, medium, or high producers. There is a 20% chance that a low producer will become a medium producer the following month, and a 5% chance that a low producer will become a high producer. A medium

    asked by Andrey L on May 2, 2009
  86. math,percentage

    Ruzita bought 3kg of chicken.she used 0.75kg of the chicken to cook curry and another 0.13kg to stew w/ vegetables.what percentage of the chicken was not used?

    asked by kimi on February 13, 2012
  87. Chemistry

    A compound contains 'N' and 'O' atom. The ratio of mass percentage of 'N' and 'O' is 7:16. If the vapour density of compound is 46, then find the no of 'O' atoms present per molecule of the compound.

    asked by Ishu on June 17, 2017
  88. Chemistry

    Prepare M/20 oxalic acid solution.Using this solution, find molarity, strength, and percentage purity of the sodium hydroxide solution.

    asked by Sara on June 13, 2016
  89. math

    Your office manager used 45 paperclips for handouts at his presentation from the 450 paperclips available in the stock room. What percentage of the original number of paperclips did NOT get used?

    asked by Anonymous on December 7, 2016
  90. math

    Your office manager used 45 paperclips for handouts at his presentation from the 450 paperclips available in the stock room. What percentage of the original number of paperclips did NOT get used?

    asked by fab on August 22, 2016
  91. math

    show me how to calculate percentage return on the security if the payoff to the security in one year is $1000 and the security costs is $1500 today?

    asked by ron on January 11, 2013
  92. chemistry.

    1.A student is asked to measure the time taken for 4.00g of magnesium carbonate to react completely with 25.0 cm3 of dilute hydrochloric acid. Which pieces of apparatus does the student need? A: Balance, clock, pipette B: Balance, clock, thermometer C:

    asked by Ochaya on August 15, 2009
  93. chemistry

    1 L FLASK CONTAINS NITROGEN ALONG WITH A DROP OR TWO OF WATER AT 40C THE TOTAL PRESSURE BEING 760 TORR .IF ALL THE CONTENTS ARE TRANSFERRED TO ANOTHER FLASK OF 0.5L AT THE SAME TEMPERATURE WHAT WILL BE THE PRESSURE SET UP IN THE SECOND FLASK? (AQUEOUS

    asked by Anonymous on September 30, 2010
  94. 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
  95. Chemistry

    1) Consider the following substance: V3N5. What is the oxidation number of vanadium and nitrogen? 2) Consider the following substance: Mn2O7. What is the oxadation number of manganese and oxygen? 3) Consider the following reaction: Al2(SO4)3. What is the

    asked by Ryan on January 13, 2012
  96. chemistry

    1 L FLASK CONTAINS NITROGEN ALONG WITH A DROP OR TWO OF WATER AT 40C THE TOTAL PRESSURE BEING 760 TORR .IF ALL THE CONTENTS ARE TRANSFERRED TO ANOTHER FLASK OF 0.5L AT THE SAME TEMPERATURE WHAT WILL BE THE PRESSURE SET UP IN THE SECOND FLASK? (AQUEOUS

    asked by Anonymous on September 30, 2010
  97. chemistry 20

    A student mixed a solution of aqueous calcium chloride with an aqueous solution of magnesium sulphate. A precipitate formed. 1) Write the balance chemical equation for the reaction including states of matter. Ensure you write the reactants as a dissociated

    asked by amber on May 11, 2015
  98. chemistry help !!!!!!!!!!!!!!!!

    a)A N6+ ion in its ground state absorbs an X-ray photon of energy 2.0000 keV. Explain what happens to the ion and why. b)Explain why the nitrogen ion N6+ is a hydrogen-like ion. Assuming the ion is for the major stable isotope 14N, state which sub-atomic

    asked by john on March 10, 2013
  99. Science

    Which electrons in an atom take the most energy, and what are they called? What Kind of diagram is used to show how many of these electrons an atom has? What name is given to the elements with eight outer electrons? Which element belongs to this group,

    asked by John Doswell on December 9, 2015
  100. Chemistry

    Heating 1.0 mole of ammonia and 1.0 mole of molecular nitrogen at 723k in a 10L flask,the following equilibrium is observed: N2(g)+3H2(g)=2NH3(g) when the equilibrium is reached ,0.40 moles of molecular hydrogen are present in the flask,determine Kp and Kc

    asked by Gianna mele on September 19, 2016