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Unit 3 Test – Chemical Bonding and Nomenclature31In a water molecule, oxygen has two shared pairs of electronsand two unshared pairs of electrons, which bond with onevalence electron in hydrogen. The arrangement of the valenceelectrons for oxygen and hydrogen when they bond show thatthe Lewis dot structure representsA.B.C.D.2B. coppera bent shape.a linear shape.a trigonal planar shape.a tetrahedral shape.The diagrams in the box represent the Lewis dot structures fordifferent molecules.Metallic bonding allows relatively free movement of electronsbetween atoms. This bonding results in the malleability ofsubstances. A sample of which substance would MOST likelyexhibit malleability?A. ozoneC. sodium chlorideD. hydrogen peroxide4The formation of an ionic bond involves theA. transfer of electrons.B. sharing of neutrons.C. transfer of neutrons.D. sharing of protons.5Which molecule would be polar based on its Lewis dotstructure?A. AB. BC. CD. DWhich of the following is true about metallic bonds?A. Electrons are highly stable.B. Electrons are delocalized.C. Electrons of metals are always shared.D. Electrons are strongly attracted to the nucleus.
Unit 3 Test – Chemical Bonding and Nomenclature867How does a single covalent bond between two carbon atomscompare to a double covalent bond between two carbon atoms?A. A single covalent bond is stronger and has a longer bondlength than a double covalent bond.Which of the following shows an acceptable way to illustrate theelectron dot formula for water?A.B. A single covalent bond is stronger and has a shorter bondlength than a double covalent bond.B.C. A single covalent bond is weaker and has a shorter bondlength than a double covalent bond.C.D. A single covalent bond is weaker and has a longer bondlength than a double covalent bond.D.A bond is formed when an electron is transferred from a sodiumatom to a chlorine atom. What happens to the sodium atomduring this process?9A. The mass of the atom increases.Which property allows carbon to form a variety of long-chainpolymers?A. Carbon has six valence electrons used in multiple bonds.B. Carbon forms strong ionic bonds with different molecules.B. The atom becomes an isotope.C. Carbon has four valence electrons, allowing for multiplebonds.C. The atomic number decreases.D. Carbon forms both ionic and covalent bonds with othercarbon atoms.D. The atom becomes a positive ion.10Which molecule contains a triple bond?A. F2B. O2C. Cl2D. N2
Unit 3 Test – Chemical Bonding and Nomenclature1411Electronegativity values for elements in Group 1A are muchlower than the values for elements in Group 7A. What type ofbond forms if an element from Group 1A bonds with an elementfrom Group 7A?A. ionic bondB. They are all ionically bonded.C. They are all organic compounds.B. hydrogen bondC. polar covalent bondD. They all have covalently bonded elements.15D. nonpolar covalent bond12Which statement explains why hydrogen gas, H2, ammonia,NH3, and ethylene, H2CCH2, are similar?A. They all occur only as gases.Which statement describes what occurs when largebiomolecules such as glucose (C6H12O6) form?A. Polymerization is initiated.Which atom below would be MOST likely to form a compoundwith magnesium (Mg) in a ratio of one to one?B. Oxygen and hydrogen will bond first.A. nitrogen (N)D. Electrons are transferred to form ionic bonds.C. Electrons are shared to form covalent bonds.B. calcium (Ca)D. chlorine (Cl)An ionic bond can best be described by which statement?A. Elements combined due to a large difference inelectronegativity.The diagram below represents the Lewis dot structure forfluorine.B. Elements combined due to a small difference inelectronegativity.C. oxygen (O)1316C. Electrons are shared between all like atoms.Which statement BEST describes the Lewis dot structure forfluorine?A. Fluorine has a total of seven electrons.B. Fluorine generally forms an ion by losing one electron.C. Fluorine tends to form seven ionic bonds.D. Fluorine has one electron available to form a covalent bond.D. Electrons are transferred within sublevels of an atom.
Unit 3 Test – Chemical Bonding and Nomenclature17Water moves by capillary action through soil from moist areasto dry areas. Which property of water is MOST responsible forthis capillary action?A. Water is a polar molecule.Which type of covalent bond is the longest?A. SingleB. DoubleB. Water contains an oxygen atom.C. TripleC. Water has a high surface tension.D. None of the AboveD. Water has a high specific heat.182021As the dispersion forces of a substance increase, the boilingpoint of the substance also increases. Which set of noble gases isarranged in order from least to greatest boiling point?A. Ar‚ Kr, Ne, XeHydrogen bonding occurs between all of the following elementsexcept:A. ChlorineB. FluorineC. NitrogenB. Kr, Ne, Xe, ArD. OxygenC. Ne, Ar, Kr, XeD. Xe, Kr, Ar, Ne1922Which statement best describes London dispersion forces?A. A universal force between all things composed of protonsand neutronsWhich type of covalent bond is the strongest?A. DoubleB. The strongest type of forceB. TripleC. The weakest type of bondC. SingleD. A weak attraction between the electrons of one moleculeand the protons of another moleculeD. None of the Above
Unit 3 Test – Chemical Bonding and Nomenclature2523Which sequence has the forces listed from strongest to weakest?A. London Dispersion Forces, Hydrogen Bonding, DipoleDipoleB.B. Dipole-Dipole, London Dispersion Forces, HydrogenBondingC.C. Hydrogen Bonding, Dipole-Dipole, London DispersionForcesD. Hydrogen Bonding, London Dispersion Forces, DipoleDipole24D.26Which statement best describes why forces are weaker thanbonds?A. Forces are weaker because they energy is dispersed among agreater number of electronsWhat is the IUPAC name of a compound with the chemicalformula of Mn2(SO3)3?A. dimanganese trisulfiteB. manganese(III) sulfiteC. trimanganese disulfideD. manganese(II) sulfideB. Forces are a relatively new discovery which leads to thembeing misunderstoodC. Forces do not have the electron – proton interaction of acompoundBased on the positions of the elements on the periodic table,what is the chemical formula of aluminum sulfide?A. AlS27What is the correct name for the compound whose formula isA. iron oxideD. Forces do not have electrons moving from one atom toanother within a compoundB. iron trioxideC. iron(II) oxideD. iron(III) oxide
Unit 3 Test – Chemical Bonding and Nomenclature3128What is the chemical formula of magnesium fluoride?A.B. nitrous oxideB.C. dinitrogen trioxideC.D. trioxygen dinitrideD.29What is the IUPAC name for the compound N2O3?A. nitric oxide32What is the chemical formula of cobalt (II) hydroxide?A. Co(OH)2B. CO2(OH)What is the correct name for the compound whose formula isC. CoH230A. disodium sulfateA.B. sodium sulfoxideB.C. sodium sulfateC.D. sodium sulfiteD.What is the chemical formula of copper (I) sulfate?A.D. Co2H2O33What is the IUPAC name of the compound whose formula is?A. ammonium phosphateB. triammonium monophosphateC. triammonium phosphateB.D. ammonium phosphideC.34D.What is the IUPAC name for the compound with a chemicalformula B6Si?A. hexasilicide boronB. boron heptasilicideC. hexaboron monosilicideD. boron heptasilicon
Unit 3 Test – Chemical Bonding and Nomenclature35What is the chemical formula of a compound with the IUPACname of aluminum cyanide?A.B.38. Metal atoms exist as a lattice of metal ions, which have lost theirouter electrons only temporarily. When the electrons are loose,they all repel. Which of the following properties does thistemporary repelling by electrons address?A. It helps explain the behavior of all atoms.B. It helps explain the electron interaction with protons.C.D.36Which of the following BEST explains the relationship betweenelectrons and thermal conductivity in metals?A. Electrons move slower, which allows for thermalconductivity.C. It helps explain how metals conduct electricity.D. It helps explain why metals bond.39. Which substance, when mixed with water, will produce theBEST conductor of electricity?A. table saltB. granulated sugarB. Electrons are less concentrated to allow for increasedthermal conductivity.C. Electrons form weak covalent bonds to allow for thermalconductivity.D. Electrons are delocalized, which allows for thermalconductivity.37C. carbon dioxideD. motor oil40. Why do blacksmiths place metal into a fire before pounding itinto shape to form horseshoes?How are compounds with metallic bonds similar to ioniccompounds?A. Both tend to have double and triple bonds.A. The heat creates a more consistently blended metal alloy.B. Both tend to have low boiling points.C. The fire makes it easier to stretch metal before bending itinto the shape of a horseshoe.C. Both tend to have poor conductivity.D. Both tend to have high melting points.B. The fire combines the metallic atoms into a strong latticestructure.D. The heat increases electron activity, which increases themalleability of the metal.
Unit 3 Test – Chemical Bonding and Nomenclature41. Which statement BEST explains why metals are ductile andmalleable?A. Delocalized electrons shared in metal atoms form weakbonds that are easy to break.44. All the following are properties of metallic bonding except:A. Low Melting and Low Boiling PointB. High ConductivityC. MalleabilityB. The individual metallic atoms are stable and allow metals tobe formed into various shapes.C. The positive and negative ions in the metal can easily breaklocal bonds and then form new ones.D. Delocalized electrons in metallic bonds allow metal atomsto slide past one another instead of breaking the bonds.D. Luster45. Water, Graphite/Diamond, Polymers, and Proteins are allexamples of:A. MacromoleculesB. Network SolidsC. Both A and B42. All the following are properties of ionic bonds except:A. Conductive when melted or dissolvedD. NeitherB. High Melting and Boiling PointC. High insulative propertiesD. Brittle43. All the following are properties of covalent bonding except:A. Poor electrical conductivityB. Low Melting and Boiling PointsC. Mostly solid at room temperatureBonus – 1 Point Each, Fill in the Blank1.2.3.4.D. Polar Nature5.𝟐𝟑𝟖𝑼 𝟗𝟐𝟐𝟑𝟏𝑰 ��𝟔𝟐𝟗𝟒𝟎 𝟏𝑼 𝑷𝒐 𝑪𝒖 𝑯𝒆𝟐𝒆𝟎𝜸𝟎𝟒𝟐𝟎 𝟏𝑯𝒆𝒆
9 Which property allows carbon to form a variety of long-chain polymers? A. Carbon has six valence electrons used in multiple bonds. B. Carbon forms strong ionic bonds with different molecules. C. Carbon has four valence electrons, allowing for multiple bonds. D. Carbon forms both ionic and covalent bonds with other carbon atoms.
akuntansi musyarakah (sak no 106) Ayat tentang Musyarakah (Q.S. 39; 29) لًََّز ãَ åِاَ óِ îَخظَْ ó Þَْ ë Þٍجُزَِ ß ا äًَّ àَط لًَّجُرَ íَ åَ îظُِ Ûاَش
Collectively make tawbah to Allāh S so that you may acquire falāḥ [of this world and the Hereafter]. (24:31) The one who repents also becomes the beloved of Allāh S, Âَْ Èِﺑاﻮَّﺘﻟاَّﺐُّ ßُِ çﻪَّٰﻠﻟانَّاِ Verily, Allāh S loves those who are most repenting. (2:22
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Asset management in Europe is mainly concentrated in six countries where almost 85% of the asset management activity takes place. The United Kingdom is the largest European asset management market, followed by France, Germany, Switzerland and Italy. Thepresence of large financial centres can explain the market concentration in these countries. The
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The electromagnetic compatibility (EMC) test standards with which automobile manu - facturers must comply are determined by bodies such as ISO, SAE and JASO. Additionally, most manufacturers also develop and specify their own custom EMC tests to meet a wideranging – and fast evolving – set of requirements. The need for a flexible test resource has never been greater Automotive .
Mining overview: Gold stars and black holes 22 January 2019 4 Executive summary In past publications, we have derived differentiated values for measured, indicated and inferred gold resource ounces listed in London, Canada and Australia. This report updates these numbers and extends the methodology to other metals and minerals (provided overleaf). In addition to our traditional in-situ .
