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Why do beryllium and fluorine combine in a 1:2 ratio? use page 194 in your textbook. Be is in group 2 (IIA) and has two electrons in its outer shell which it wants to give away. Flourine is in group

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  1. chemistry

    Why do beryllium and fluorine combine in a 1:2 ratio? use page 194 in your textbook. Be is in group 2 (IIA) and has two electrons in its outer shell which it wants to give away. Flourine is in group 17 (VIIA) and has seven electrons. It needs one more to
  2. Chemistry

    Why do beryllium and fluorine combine in a 1 : 2 Ratio? Be is in group 2 (or IIA). F is in group VIIA (or 17 depending upon what system you are using). Therefore, flourine needs one electron to fill its outside shell. Be has two in its outside shell to
  3. Chemistry

    Beryllium flouride's formula is BeF2. Why do beryllium and flourine combine in a 1:2 ratio?
  4. Chemistry

    In the reaction of beryllium with fluorine, which atom is oxidized? fluorine beryllium*** neither of them both of them
  5. chemistry

    why do beryllium and flourine combine in a 1 : 2 ratio ?
  6. Chemistry

    Why do beryllium and flouine combine in a 1:2 ratio?
  7. Science

    Which of the following pairs of elements would have the most similar chemical properties? A.Boron (B) and Fluorine (F) B.Hydrogen (H) and Helium (He) C.Beryllium (Be) and Magnesium (Mg) D.Carbon (C) and Oxygen (O)
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  9. English-Writing

    In citing work in an essay from a textbook in MLA format do you: use the textbook name and then the page number or do you use the publishers name with the page number?
  10. science

    The molecule beryllium chloride has one beryllium atom, a metal, and two chlorine atoms, nonmetals. What kind of bond will they form?(1 point) A. Beryllium and chlorine will form an ionic bond where one beryllium atom will donate electrons to two chlorine
  11. Science

    The molecule beryllium chloride has one beryllium atom, a metal, and two chlorine atoms, non metals. What kind of bond will they form?
  12. physics

    How much heat in joules must be added to 1.059 kg of beryllium to change it from a solid at 662°C to a liquid at 1285°C (its melting point)? For beryllium: L = 1.35×10 J/kg, L = 3.24×10 J/kg, c = 1820 J/kg C°
  13. Chemistry

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  14. PROJECTILE MOTION

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  15. Physics

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  17. Chem

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  18. Government essay help

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  19. Chem

    When 5.49 g of platinum reacts with an excess of fluorine, 7.65 g of platinum(_) fluoride forms. a. What is the mass of fluorine in the compound? b. Find the number of moles of platinum that reacted. c. Find the number of moles of fluorine that reacted. d.
  20. chemistry

    gaseous hydrogen and fluorine combine in the reaction above to form hydrogen fluoride with an enthalpy change of -540kJ. What is the value of the heat of formation of HF(g)
  21. Computer Science

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  22. Chemistry

    A sample of air contains 21.9ìg/m3 of beryllium dust. How many atoms of beryllium are present in a room with dimensions of 8 feet by 12.3 feet by 18.3 feet? Answer in units of atoms.
  23. chem

    A sample of air contains 14.5 µg/m3 of beryllium dust. How many atoms of beryllium are present in a room with dimensions of 11 feet by 13.9 feet by 17.5 feet? Answer in units of atoms.
  24. AP Chemistry

    A sample of air contains 12.8 µg/m3 of beryllium dust. How many atoms of beryllium are present in a room with dimensions of 8 feet by 13 feet by 15.1 feet? Answer in units of atoms
  25. science

    A sample of air contains 32.7 µg/m3 of beryllium dust. How many atoms of beryllium are present in a room with dimensions of 8 feet by 13.6 feet by 15.6 feet? Answer in units of atoms
  26. composition

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  27. chemistry - Bonding

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  28. social studies

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  29. Economics

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  30. Physics/Math

    You drop a 1.8 kg textbook to a friend who stands on the ground 9 m below the textbook with outstretched hands 1.50 m above the ground. (a) What is the speed of the textbook when it reaches the hands? m/s (b) If we substituted a second textbook with twice
  31. Chemistry

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  32. chemistry

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  33. Sci

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  34. Sci Plzz See This Post

    Does my poem below have these things "explain why it is where it is on the periodic table, what element(s) it might combine with to make a compound/molecule, and finally, WHY it would interact with that other element" Here is the Poem Below: “What’s
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  37. Math

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  38. science - atoms and bonds

    #1) Draw the following ions using a Bohr diagram: b)oxygen: i got [oxygen:2)8)]-2 (the -2 is an exponent) but the answer said [oxygen: 2)8)8)]-2...is this right? d)fluorine: i got [fluorine:2)8)]-1 and the book says [fluorine: 2)8)8)]-1..again, is the book
  39. Chemistry

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  41. Chemistry

    Fluorine-18, which has 1/2 life of 110 minutes, is used in PET scans. If 100 mg of fluorine-18 is shipped @8AM, how many milligrams of the radioisotope are still active if the sample arrives at the lab at 1:30 pm?
  42. Social Studies

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  43. Math

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  44. Operating Systems

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  45. math

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  46. Physics

    A 25-g bullet traveling 300 m/s shoots into a physics textbook that is 3.5 cm wide, and exits the textbook traveling 40 m/s. Poor defenseless textbook! (A) What was the average deceleration of the bullet while it was penetrating through the textbook? (B)
  47. calculus

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  48. English

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  49. british literature

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  50. Math

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  51. Chemistry

    Given 80g of Calcium reacts with Fluorine at STP, how many atoms of Fluorine are consumed? Heres the formula: Ca (s) + F(subscript 2) --> CaF(subscript 2) How do i do this? Thanks! Jackie
  52. Chemistry

    Please help me out... The pressure of a container of fluorine gas with a volume of 1.5L is 678mmHg at 55.0*C. a. If the volume of the fluorine gas increases to 5.0L, what would be the pressure of the gas in atm? The amount and tempature of gas are
  53. physics

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  55. English

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  56. English

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  57. Literature

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  58. Chemistry

    What is the octet rule? How does the rule explain the common ion of fluorine and of calcium? The octet rule is when an element contains 8 valence electrons. The rule explains the common ions of fluorine and calcium to show how much is needed to gain/lose
  59. Atomic Number Chem

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  60. chemistry

    If chlorine and fluorine react according to the reaction (to balance): Cl2+ F2→ ClF3 And calculate the amount of product and of limiting reagent that remains, when 10 g of chlorine and 30 g of fluorine are reacted to give chlorine trifluoride.
  61. MATH

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  62. algebra

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  63. Math/Algebra

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  64. algebra

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  65. calculus m119

    Work problem number 17 from section 4.4 of your book (page 194) using the revenue function R(q)=630q and the cost function C(q)=9500+2q2. Round your answers to the nearest whole number. a) At what quantity is profit maximized? q = b) What is the total
  66. substance

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  67. Operating system

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  68. Algebra/Language Arts

    I have a 15 page paper due tomorrow. I finished the paper, and edited it and all, that's not my problem. My cover page is a work of art that I designed and I wanted to put a note on how it relates to my essay. How would I go about doing this? Do I add a
  69. math

    could someone check my work please? I have to solve for 'x' Questions ~ 1. 3x – 19 = -2 Add ‘19’ to each side of the equation ~ -19+19+3x= -2+19 Combine like terms~ -19+19=0 0+3x= -2+19 3x= -2+19 Combine like terms~ -2+19=17 3x=17 Divide each side
  70. Chemistry H.

    Assume that the nucleus of the fluorine atom is a sphere with a radius of 5 x 10 ^ -13 cm. Calculate the density of matter in the fluorine nucleus in grams/cm^3. Now convert your answer to tons per cubic centimeter, knowing that there are 454 grams in one
  71. chem urgent!!

    At a temperature of 35 °C, fluorine gas effuses through a pinhole at a rate of 8.7 L s−1. What is the speed of the fluorine as it effuses through the pinhole? i no u use the eq. 3rt/M ^.5 but i get 20 for the answer but it is really 450.
  72. Chemistry asap

    Using the activity series, either from the textbook (page 80) or your data sheets, determine whether the reactions given below would be spontaneous or not. JUSTIFY your answer in each case. a. Cu2+ (aq) + Au (s) → Au+ (aq) + Cu (s) b. Fe2+ (aq) + Al (s)
  73. math

    could someone check my work please? I have to solve for 'x' Questions ~ 1. 3x – 19 = -2 Add ‘19’ to each side of the equation ~ -19+19+3x= -2+19 Combine like terms~ -19+19=0 0+3x= -2+19 3x= -2+19 Combine like terms~ -2+19=17 3x=17 Divide each side
  74. Physics

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  75. physics

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  76. Chemistry

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  77. physics

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  78. chemistry

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  79. chemistry

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  80. Algerba II

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  81. Physics

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  82. science, IT

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  83. In-Text Citations

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  84. chemistry

    The equation demonstrates a reaction of sodium chloride and fluorine. 2NaCl + F2 → 2NaF + Cl2 In order for the reaction to proceed, for every two moles of sodium chloride, there must be at least how many mole(s) of fluorine?
  85. microsoft word

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  86. chemistry

    The partial pressure of fluorine gas (F2) in a mixture of gases where the total pressure is 1.00 atm is 300. torr. What percent of the mixture is made of fluorine gas
  87. chemistry

    The partial pressure of fluorine gas (F2) in a mixture of gases where the total pressure is 1.00 atm is 300. torr. What percent of the mixture is made of fluorine gas
  88. science( chem)

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  89. APA FORMATTING

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  90. math

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  91. Writing

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  92. Physics

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  93. physics

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  94. Search Strategies

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  95. Physics

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  96. math

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  97. Briittany algebra question

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  100. math

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