i need the exat percentage of nitrogen in magnesium nitride

44,388 results, page 9

  1. Math/Statistic

    If I'm doing a pearson's and need to know the percentage of predicitability... all I have to do is work out the pearon's, right?
  2. Social Studies

    I need to know what percentage of workers in the US were unemployed by 1932. I'm seeing a lot of different answers on the internet. Thanks..
  3. chemistry

    Ammonia reacts with copper(ll)oxide to give nitrogen gas, copper and steam. Balance the equation. If 18.1g of ammonia is reacted with 90.4g of coope(ll)oxide,how many moles of each reacts?,and how many grams of nitrogen are formed?
  4. Math

    The circle graph shows data on the suitability of land for farming. Which three categories together account for exactly half of the land? The percetage for Too Shallow is 13% The percentage for Chemical Problems is 25% The percentage for Too Dry is 30% The percentage for ...
  5. Science HELP!

    2:What is the genetic code? A:The order of amino acids in proteins makes up the genetic code. B:The order of amino acids in mRNA makes up the genetic code. C:The order of nitrogen bases in tRNA makes up the genetic code. D:The order of nitrogen bases in DNA makes up the ...
  6. Chemistry

    The molar solubility of magnesium chloride in water is 0.23 M. What is the numerical value for Ksp for MgCl2? Suppose you wanted to reduce the concentration of dissolved Mg2+ to 0.00537 M by adding NaCl. What concentration of NaCl would you need?
  7. Chemistry

    8-hydroxyquinoline (Q) can complex and precipitate many metals. A mixture of the aluminium and magnesium complexes weighed 1.0843g (MW=459.43; 312.61). When ignited, the mixture decomposed and left a residue of Al203 (MW 101.96) and MgO (MW 40.304) weighing 0.1344g. What is ...
  8. Math 201

    I am having problems with this question in my math class. Consider a student loan of ​$25,000.00 at a fixed APR of 12% for 25 years. a. Calculate the monthly payment. The monthly payment is $263.31 b. Determine the total amount paid over the term of the loan. This is $78,993...
  9. chemistry - please help

    What solubility of hydrogen and nitrogen is in liquid ammonia? Does any formula exist for calculation a solubility of hydrogen and nitrogen in liquid ammonia or do you know specific constants or numbers for this question? Thank you for your answers.
  10. chemistry HMWK help.......

    ammonia is produced by sythesizing nitrogen and hydrogen gas. if i have 2 mols of nitrogen gas and 5 mols of hydrogen gas, which reagent will run out first?? a) if i have 0.0345 mols of nitrogen gas and 0.0537 mols of hydrogen gas, which reagent will run out first? how many ...
  11. chemistry

    The pollutant NO is formed in diesel engines. The reaction fixes atmospheric nitrogen with oxygen to form NO. The reaction is: N2(g) + O2(g) = 2NO(g). If the equilibrium constant for this reaction at elevated temperatures is 5.60E-11, then what is the partial pressure of NO ...
  12. chemistry

    One of the steps in the Ostwald process for the production of nitric acid involves oxidation of ammonia. 4NH3 (aq) + 5O2 (g) <---> 4NO (g) + 6H2O (g), Delta H= -905kJ a) State the reaction conditions that favour the production of nitrogen monoxide. b) A rhodium/platinum ...
  13. Coordinated Sciences (chem)

    Hi guys, so we recently did a lab where we put a strip of Magnesium Carbonate in a crucible with a lid on, weighed it and then put it over a bunsen burner for a while to let it oxidise. After that, we weighed it again. Here are my results: Crucible + Lid =34.07g Crucible + Lid...
  14. Algebra II

    Farmer Fred can use two types of plant fertalizers, mix A and mix B. Type A contains 10 lbs of nitrogen, 8 lbs of phosphoric acid, and 9 lbs of potah in a cubic yard of each mix. Type B contains 5 lbs of nitrogen, 24 lbs of phosphoric acid and 6 lbs of potash in a cubic yard ...
  15. Chm

    Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air molecules.What is the partial pressure of nitrogen in air at atmospheric pressure (1 atm)? Assume ideal behavior.
  16. Chemistry-Please help

    Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air molecules. A)What is the partial pressure of nitrogen in air at atmospheric pressure (1 atm)? Assume ideal behavior.
  17. chemistry

    a pressure of 96.5Kpa is exerted by a mixture of nitrogen gas and water vapor in a equilibrium with liquid water at 18 degree celcius , what is the partial pressure exerted by the nitrogen gas?
  18. science

    What solubility of hydrogen and nitrogen is in liquid ammonia? Does any formula exist for calculation a solubility of hydrogen and nitrogen in liquid ammonia or do you know specific constants or numbers for this question? Thank you for your answers.
  19. chemistry

    I'm drawing a Lewis structure for hydrogen cyanide using nitrogen with a valency of 3. Would I still need 2 dots after the N or would this represent nitrogen valency 5? You need the two extra electrons for N at the end. Only the electrons involved BETWEEN the elements are ...
  20. CHEM

    A student used 10 mL water instead of 30 mL for extraction of salt from mixture. How may this change the percentage of NaCl extracted? My book says: % NaCl= (grams of NaCl / total grams of mixture) x 100 What I don't get is if it does change the percentage, why? It says the ...
  21. chemistry

    1)gaseous sulfur trioxide and gaseous nitrogen monoxide form when gaseous sulfur dioxide and gaseous nitrogen dioxide react. 2)Enter the formula of the missing substance ( Y ) in the balanced equation below. Do not give the coefficient. C2H4 + 3Y → 2CO2 + 2H2O
  22. Chemistry - Enthalpy change and stoichiometry

    N2 + O2 = 2NO enthalpy change = +180.6kJ c) what is the enthalpy change for the formation of one mole of nitrogen monoxide? d) What is the enthalpy change for the reaction of 1.000 * 10^2g of nitrogen with sufficient oxygen? I do not understand how to calculate the above, can ...
  23. College Chemistry

    A mixture of the compounds sodium oxide and magnesium chloride contains 2.4182 g of sodium oxide and is 89.3 % by mass magnesium chloride. The sodium oxide is 74.200 % by mass sodium. Calculate the moles of oxygen in the mixture. Thanks in advance.
  24. stoichiometrics

    What is the mass of each and which is greater? 1g H2 + ?N2 and 1g H2 + ?O2 I've balanced them to this point: 3H2 + N2 ===> 2NH3 2H2 + O2 ===> 2H2O Help please, I am stuck on this step and cannot get any further. Thanks, PJ Good! You've done the hard part. For the first ...
  25. Chemistry

    1.) A 3.000gram sample of a hydrate compound containing Co, C2O4, and H2O was combusted to give 1.316g of Co3O4. What is the percentage of Cobalt in the oxide? 3.) 2.000 grams of a sample containing Co, C2O4, and H2O showed there to be 0.9621g of oxalate in the sample. Was is ...
  26. CHEMISTRY

    In a study of the reaction of magnesium with hydrochloric acid, two experiments were carried out. Each uses 1 g of magnesium ribbon, and 50 mL of hydrochloric acid was added to each reaction flask. One of the hydrochloric acid solutions added was more concentrated than the ...
  27. chemistry

    Ammonia is often produced by reacting nitrogen gas with hydrogen gas. How many liters of ammonia gas can be formed from 12.9 L of hydrogen gas at 93.0°C and a pressure of 43.5 kPa? (Assume an excess amount of nitrogen gas.) I have absolutely no idea how to begin this.
  28. Chemistry

    Magnesium metal reacts with phosphoric acid to produce hydrogen gas. If 50 g of phosphoric acid is used, how much magnesium metal is needed? How much hydrogen gas is produced?
  29. science

    i need to draw a picture of nitrogen as a person, with the amount of protons, neutrons, electrons and the atomic number, all of which are 7, corresponding to the head, body, arms and legs. any ideas on how to draw this?
  30. maths(percentage)

    45000 candidates appeared in examination. Out of these,40% were girls. If 70% boys and 75% girls passed, what was the result percentage ?
  31. chemistry

    sometimes,instead of percentage composition, you will have the composition of a mass sample. using the actual mass of the sample, determine the empirical formula for compounds that have the following analyses. b. a 13.07g sample of an unknown substance is composed of 9.48g of ...
  32. chemistry

    QUESTION 11 Ammonia gas is formed from nitrogen gas and hydrogen gas, according to the following equation: N2 (g) + 3H2 (g) Imported Asset 2NH3 (g). If 84.0 g of nitrogen gas is allowed to react with an excess of hydrogen gas to produce 85.0 g of ammonia, what is the percent ...
  33. Finance Management

    3. A corporation’s capital structure is composed of common stock and preferred stock. If the percentage of common stock is three times the percentage of preferred stock in the capital structure, the percentage of common stock minus the percentage of preferred stock in the ...
  34. math

    A student spends 37.5% of his money on food 28.75%on rent and 15% on books. what percentage what percentage of her money is left to spend on other things
  35. 12th grade Chemistry

    BOND BREAKING AND BOND MAKING: Determine by calculations and energy level diagrams, to proof whether these two reactions are endothermic or exothermic reactions.. 1. Methane burns in oxygen 2. Nitrogen (II) reacting with oxygen producing nitrogen monoxide.. please anyone just ...
  36. math

    A factory kept increasing it's output by the same percentage every year .find the percentage if it is known that the output is doubled in the last two years.
  37. Statistics 15.34

    For the data below with y = touchdown percentage and x= interceiption percentage, determine and interpret the coefficients of correlation and determination. Rating TD% Inter% S. Young 96.8 5.6 2.6 K. Warner 95.7 5.5 3.5 D. Culpepper 93.2 5.4 3.1 P. Manning 92.3 5.6 3.1 J. ...
  38. Naming Ionic Compounds

    Can you please have a look at my questions. Thank you very much in return:-) 1. Will 2 metals develop an ionic compound? Clarify. I don't think they will, but I don't know how to explain. I only know that in order to form ionic compounds, the total number of electrons given up...
  39. Chemistry

    In one experiment, the mass of water is 92.6 grams, the initial temperature of the water is 67.6oC, the mass of liquid nitrogen added to the water is 61.4 grams, and the final temperature of the water, after the liquid nitrogen has vaporized, is 35.6oC. Specific heat of water...
  40. Chemistry

    Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3 NO2 (g)+ H2O (l) --> 2HNO3 (l) + NO (g) Suppose that 5 mol NO2 and 1 mol H2O combine and react completely. How many moles of the reactant in excess are present after ...
  41. fraction&percentage

    express each fraction as a percentage and round off to 2 decimal places. a)79/148 b)58/379 c)15/52 d)43/95
  42. physics

    Percentage error in displacement time and mass are 2%, 1% and 3%. Find percentage error in the measurement of force.
  43. science please help asap

    i need acrostic for nitrogen asap Noble gas In the air TNT R O Gas Everywhere Non metal
  44. AP Chemistry HELP!!!

    This is part of a marathon problem, we have to identify the five compunds of H, N, and O. As well as write a Lewis structure that is consistent with the info. PLease help I don not even understand the ? a. All the compunds are electrolytes, although not all of them are strong ...
  45. chem

    which of th gases is obtained industrially by fractional distillation. is it ammonia or chlorine or hydrogen or nitrogen? Nitrogen is obtained industrially by fractional distillation of liquid air.
  46. Physics

    The molecular mass of oxygen molecules is 32, and the molecular mass of nitrogen molecules is 28. If these two gases are at the same temperature, the ratio of nitrogen's r m s speed to that of oxygen is: (8)1/2:(7)1/2 8:7 (7)1/2:(8)1/2 7:8
  47. Chemistry

    For the following reaction, 0.506 moles of ammonia are mixed with 0.458 moles of oxygen gas. ammonia (g) + oxygen (g) nitrogen monoxide (g) + water (g) What is the FORMULA for the limiting reagent? What is the maximum amount of nitrogen monoxide that can be produced? moles
  48. Stoichiometry

    Balance. Ammonia + oxygen yields Nitrogen + water. Then, given the moles of reactant or product below, determine the corresponding amount in moles of each of the other reactants and products. a)4 mol Ammonia b)4 mol of Nitrogen c)4.5 mol oxygen
  49. PHYSICS

    At what temperature would the rms speed of a nitrogen atom equal the following speeds? (Note: The mass of a nitrogen atom is 2.324 10-26 kg.) (a) the escape speed from Earth, 1.12 104 m/s _____K (b) the escape speed from the Moon, 2.37 103 m/s _____K
  50. chemistry

    I need to convert a word problem that I was given into a balanced chemical equation and cannot figure out how i was type it. The problem is: Nitrogen and hydrogen gases react at extreme temperatures and pressures. Any help?
  51. Marine Science

    Describe the phases of the nitrogen cycle, in the marine environment, starting with the death of a fish. Could someone help me with this? I just need it explained to me, I've watched and read many articles.. but still do not understand very well
  52. Math

    calculate the rate percentage per year if $3240 is paid as intrest on 12000 for 2 and a half years. whats percentage pre year?
  53. Algebra

    the price of technology stock has risen to 9.68. Yesterday's price was 9.57. Find the percentage increase. Round to the nearest tenth. 9.68-9.57 0.11 I can't figure out how to get the percentage
  54. Physics

    a)If a Magnesium nucleus is fixed a distance away from a charge, what is the magnitude of the electrostatic force it experiences in Newtons (yes, it is a small force in Newtons)? b)If the charge is at the origin and the Magnesium nucleus is from the origin in the direction, at...
  55. Chemistry

    1.00g of oxygen combine with 0.126 g of hydrogen to form H2O. 1.00 g of nitrogen combie with 0.216 g of hydrogen to form ammonia. Predict the weight of oxygen required to combine with 1.00 g nitrogen to form an oxide.i m a student
  56. Intro to Physics

    At what temperature would the rms speed of a nitrogen atom equal the following speeds? (Note: The mass of a nitrogen atom is 2.324 10-26 kg.) (a) the escape speed from Earth, 1.12 104 m/s ___________K (b) the escape speed from the Moon, 2.37 103 m/s ___________K
  57. Science

    Some nitrogen atoms have seven neutrons and some have eight neutrons. These two forms of nitrogen are: a. ions of each other b. phases of each other c. isotopes of each other and how exactly do you know? My book doesn't cover this at all yet its in my homework so im not sure
  58. chemistry

    Magnesium has three naturally occurring isotopes: Mg-24 with mass 24.3050 amu and a natural abundance of 78.99 %, Mg-25 with mass 24.9858 amu and a natural abundance of 10.00 %, and Mg-26 with mass 25.9826 amu and a natural abundance of 11.01 %. Calculate the atomic mass of ...
  59. Chemistry honors

    20 grams magnesium metal react with excess oxygen and 28 grams of magnesium oxide are produced in lab what is percent yield? If 99.8 g of aluminum nitrate are reacted with excess sulfuric acid what would be the theoretical yield in grams of aluminum sulfate? i have done both ...
  60. chemistry

    If you mixed 100 grams of magnesium nitrite with 100 grams of lithium phosphide and made magnesium phosphide and lithium nitrite how many grams of each product would you make and how many grams of each reactant would be left over at the end.
  61. chemistry

    if you mixed 100 grams of Magnesium nitrite with 100 grams of Lithium Phosphide and made magnesium phosphide and lithium nitrite how many grams of each product would you make and how many grams of each reactant would be left over at the end?
  62. Stoichiometry

    if you mixed 100 grams of Magnesium nitrite with 100 grams of Lithium Phosphide and made magnesium phosphide and lithium nitrite how many grams of each product would you make and how many grams of each reactant would be left over at the end?
  63. biology

    is nitrogen in the hydrophobic group is oxygen in the hydrophobic group and what kinds of bonds could nitrogen and oxygen form.
  64. Chemistry

    1.00g of oxygen combine with 0.126 g of hydrogen to form H2O. 1.00 g of nitrogen combie with 0.216 g of hydrogen to form ammonia. Predict the weight of oxygen required to combine with 1.00 g nitrogen to form an oxide.
  65. Chemistry

    Write the symbol and electron configuration for each ion and name the noble gas with the same configuration. a. nitride _________________________ b. oxide ___________________________ c. sulfide _________________________ d. bromide _________________________
  66. statistics

    Using the 68-95-99.7 rule: Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first… a. (0.1 point) Percentage of scores ...
  67. chemistry

    The glass panels of a sky roof need to be coated in order to screen out ultraviolet radiation (10-400 nm wavelength) but without color distortion in the visible spectrum. Candidate coating materials are gallium nitride (GaN) with a band gap,Eg, of 3.2 eV, or gallium arsenide (...
  68. science

    Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be used by plants to make amino acids. The process of ...
  69. percentage

    Evelyn has a ribbon 420cm long.She uses 216cm to decorate a present.what percentage of the ribbon is left?Express your answer correct to 1 decimal place
  70. chemistry

    Henry's law constant for N2 and O2 is 1.6 *10^-6and 8.77*10^-7 molal/mm Hg at 298k.Air has 78 mole percentage N2 and 21 mole percentage O2.at atmospheric pressure the ratio of solubility of N2 and O2 in water is?
  71. Chemistry

    So if i have the equation 2 SO3 --> 2S + 3 O2 would my word equation for this be Sulfur Oxide --> Sulfur + Oxygen OR Sulfur hexaoxide --> Sulfur + hexaoxide or what would be the correct one if both are wrong? and for this one 2 KI + MgCI2 --> MgI2 + 2KCL Potassium ...
  72. chemistry

    A sealed container comtains 1.50 mol of nitrogen gas, 2.00 mol of oxygen gas and 3.50 mol of argon gas. If the total pressure is 900 kPa, what is the pressure of the nitrogen gas? I don't know which formula to use
  73. Setting up a chem problem

    Magnesium reacts with water in the equation, Mg+2H²O-->Mg(OH)²+H². You have 8.1 g of magnesium available. This means you will need ___ g of water to use all the magnesium. This seems sorta simple, but how can i set it up? These are stoichiometry problems. They can be ...
  74. chemistry

    When nitrogen dioxide (NO2) from car exhaust combines w/ water in the air it forms nitric acid (HNO3), which causes acid rain, and nitrogen monoxide. 3NO2(g)+ H2O(L)----->2HNO3(aq)+ N(g) a.How many molecules of NO2 are needed to react with 0.250 mole H2O? b.How many grams ...
  75. Statistics

    The Graduate Record Examination (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems: 1. Draw a rough sketch, darkening the ...
  76. Math

    Alice usually has a 80% shooting percentage in basketball. On Monday she scored 16 baskets in 22 attempts. If she scores her usual percentage on Tuesday by scoring 20 baskets, how many shots did she attempt?
  77. Chemistry need asap

    Situation: The Production of Nitric Acid can be achieved by the following process: Nitrogen monoxide gas(NO) + diatomic oxygen gas+ water (liquid) ===> Nitric Acid (aq) a. Show complete balanced reaction for process What I have: 4NO+ 3O2+ 2H2O > 4HNO3 b. The lab ...
  78. Science

    Alice and Marge are studying the properties of matter. The girls cut some silver-colored magnesium sheets into 3-inch long strips and then put one strip each into test tubes: one containing water and one containing acid. Nothing happened when they added the magnesium to the ...
  79. statistics

    The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. What percentage score above 1300? What percentage score above 800? What percentage ...
  80. chemistry

    So the question I have is: Calculate the pressure of dry hydrogen collected. (Use the water temperature). And the evidence that we obtained was: Length of magnesium 3.8Cm Mass of 1 m of magnesium 1.254g Volume of hydrogen collected 67mL Air temperature 27C Water temperature ...
  81. algebra

    Using the Gauss-Jordan method need to determine the coefficients a,b,c of the quadratic equation x=ax squared +bx+c where y is degree of like and x is the percentage of sugar y=5.4 and x=8
  82. science

    My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be used by plants to ...
  83. science

    My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be used by plants to ...
  84. science

    My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be used by plants to ...
  85. science

    My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be used by plants to ...
  86. science

    My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be used by plants to ...
  87. Chemistry

    Pantothenic acid id one of the B vitamins. A sample of pantothenic acid was found to produce 3.84 mL of nitrogen gas, N2 at 23 degrees celsius and 785 mmHg. What is the volume of the nitrogen gas (in liters) produced as 29 degrees celsius and 0.993 atm?
  88. AP Chemistry

    A 1277 mL sample of nitrogen (N2) was collected by displacement of water at 24 degrees C under a total barometric pressure of 966 torr. What mass of dry nitrogen was collected? The vapor pressure of water at 24 degrees C is 22 torr. Answer in units of g
  89. accouting

    Nancy Company has budgeted sales of $300,000 with the following budgeted costs: Direct materials $60,000 Direct manufacturing labor 40,000 Factory overhead Variable 30,000 Fixed 50,000 Selling and administrative expenses Variable 20,000 Fixed 30,000 Question 1: Compute the ...
  90. Physics

    The atomic mass of a nitrogen atom (N) is 14.0 u, while that of an oxygen atom (O) is 16.0 u. Three diatomic gases have the same temperature: nitrogen (N2), oxygen (O2), and nitric oxide (NO). Rank these gases in ascending order (smallest first), according to the values of ...
  91. Chem

    Living things require oxygen for respiration. Fuels require oxygen for burning. Air contains much more nitrogen than oxygen. Is it a good thing to have more oxygen than nitrogen in air? Explain your answer.
  92. Chemistry

    Ammonia is used as a fertilizer throughout the world. It is often produced by reacting nitrogen gas with hydrogen gas in a synthesis reaction. How much ammonia in grams can be produced from 9207 grams of nitrogen and 44 000 L of hydrogen?
  93. Statistics

    The table I have is: Color of Candy Frequency Proportion (as a fraction and decimal) Percentage Red 13 13/100 or .13 13% Orange 25 25/100 or .25 25% Yellow 8 8/100 or .08 8% Brown 8 8/100 or .08 8% Blue 27 27/100 or .27 27% Green 19 19/100 or .19 19% TOTALS 100 100/100 or 1 ...
  94. Chemistry

    A 3.000 gram sample of an unknown compound containing the elements carbon, hydrogen, and nitrogen is analyzed by combustion. The combustion releases 4.714 grams of carbon dioxide and 1.500 grams of nitrogen. If 25 molecules have a combined mass of 4.65 x 10⁻²¹ grams, ...
  95. Chemistry

    Which of the following nitrogen-containing compounds would supply the most nitrogen per gram of fertilizer? a. iron azide, Fe(N3)2, MW = 140 g/mol b. sodium azide, NaN3, MW = 65 g/mol c. potassium nitrite, KNO2, MW = 85.1 g/mol d. potassium azide, KN3, MW = 81.1 g/mol e. There...
  96. statistics

    Given a distribution of scores with a mean of 26 and standard deviation of 6. assuming normality what percentage of the cases fall between 18 and 27, what percentage of the cases lie above score 18 and below 29
  97. Astronomy

    Hi! ____ 11. What molecules can be found in the interstellar medium? (1 point) a) water, carbon dioxide, and hydrogen b) oxygen, nitrogen, and ammonia c) nitrogen, carbon dioxide, and oxygen d) hydrogen, helium, and methane My Answer: B Could someone please check my answer? ...
  98. percentage

    There are two distinct natural numbers. Each is first increased by 10 then by same percentage as each was increased for the first time. Each number finally results in 72 Find the difference between the numbers. i have received your answer as your faculty posted the answer but ...
  99. arithmetic

    In a box of 800 oranges,72 are bad.what percentage is bad?what percentage is good?
  100. applying stoichiometry

    4.00kg nitrogen dioxide reacts with 1.00kg water to produce nitric acid and nitrogen monoxide. Determine the limiting reactant and the theoretical yield of nitric acid in grams. How many grams of excess reactant are present after the reaction is complete?
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