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CHEM 120 FINAL EXAM TEST BANK | INCLUDES 2 DIFFERENT VERSIONS ACCURATE AND VERIFIED AND A STUDY GUIDE| ACCURATE | REAL EXAMS | LATEST UPDATE

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CHEM 120 FINAL EXAM TEST BANK | INCLUDES 2 DIFFERENT VERSIONS ACCURATE AND VERIFIED AND A STUDY GUIDE| ACCURATE | REAL EXAMS | LATEST UPDATE

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  • 27 de mayo de 2024
  • 30
  • 2023/2024
  • Examen
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  • chem
  • chem 120
  • chem 120 final exam
  • chem 120 final exam test bank
  • includes 2 different versions
  • accurate and verified and a study guide
  • accurate real exams latest update

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  • CHEM 120
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Por: RegisteredNurse • 3 meses hace

Very Informative, detailed and timely, I passed, thank you very much

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CHEM 120 FINAL EXAM TEST BANK | INCLUDES 2 DIFFERENT VERSIONS ACCURATE AND VERIFIED A ND A STUDY GUIDE| ACCURATE | REAL EXAMS | LATEST UPDATE Elements in groups ia and viia of the periodic table possess, respectively, how many val ence elecetrons - 1 and 1 - 1 and 7 - 7 and 1 - 8 and 8 1 and 7 How many total electrons are present in a n^3 - ion 10 Which of the following ions is not isoelectronic with the noble gas neon? - na1+ - f1- - c4+ - n3- C4+ The correct name for the ionic compond fe2se3 is - iron selenide - iron (iii) selenide - iron triselenide - diiron triselenide Iron (iii) selenide Which of the following statements about polyatomic ions is correct? - all must have names which end in -ate - all must contain one of the halogens - negative ions are mor e common than positive ions - all carry a charge of two Negative ions are more common than positive ions In which of the following pairs of ionic compounds do both members of the pair contain +1 ions - kcl and cao - na3n and li2s - alcl3 and mgf2 - more than one correct response - no correct responcse Na3n and li2s For the electron configuration 1s2, 2s2, 2p6, 3s2, 3p5, choose the appropriate number of valence electrons present from the response list 7 valence e In which of the following pairs of polyatomic ions do both members of the pair have the same charge? - sulfate and phosphate - carbonate and hydroxide - ammonium and nitrate - more than one correct response - no correct response No correct response Which of the following molecular compounds would have a lewis structure that contains 10 electron dots - hcn - h2o - nh3 - co2 Hcn The total number of nonbonding electron pairs present in the lewis structure of sih4 is Zero For which of the following pairs of elements would the compound formed between most likely be a molecular compound - li and br - ba and o - n and s - cs and f N and s What is the geometry of the molecular compound formed by the reaction of sulfur with hydrogen? Angular Which of the following sets of elements is arranged in order of decreasing electronegativity - o, s, as - cl, b, cl - br, cl, p - be, c, o O, s, as If the electronegativity difference between two atoms x and z is 1.0, the bond between the two atoms would be Polar covalent The formula mass of ammonium phosphite, (nh4)3po3 is 133.09 amu Which of the following equations is balanced - fes + 2hbr -> febr2 + 2h2s - pbo2 + 2h2 -> pb + 2h20 - fe2o3 + 3h2 -> 2fe + 3h2o - more than one correct response - no correct response More than one correct response Avagradro's number of sulfure (s) atoms would have a mass of - 6.02 * 10^ -23g - 6.02 * 10^23 g - 16 -32 32 In which one of the following measure numbers are all of the zeros significant - 0.0705 - 3,300,000 - 0.000440 - 3.945900 3.945900 Which of the following would involve an exact number - length of a table - mass of a bag of carrots - number of inches in a yard - surface area of a quilt Number of inches in a yard The calculator answer obtained from multiplying the measurements 64.49 and 6.57 is 423.70. Given the operational rules governing significant figures, this answer - is correct as written - should be rounded to 423.7

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