5. In CIF3, the electron pairs are arranged about the chlorine atom in a. a square plane. b. a tetrahedron. c. an octahedron. d. a trigonal pyramid. e. a trigonal bipyramid.
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- Find the correct molecular geometry of the molecule. - A. B. C. D. NH3 - A. B. C. D. CH4 - A. B. C. D. PCl5 - A. B. C. D. BeCl2 A. trigonal pyramidal B. Tetrahedaral C. Trigonal bipyramidal D. linearA molecule is made from four atoms. The first atom (A) has four valence electrons, the second atom (B) has 6 valence electron, and the other two atoms (C) each have 7 valence electrons. What is the shape of the molecule ABC2? a. Tetrahedral d. Trigonal pyramid c. Trigonal planar d. Linear e. Bentchalcogen 10. It is a measure of how equally the electrons in a bond are distributed between the two atoms involved in a covalent bond. A polarity B. octet rule C. ionization energy D. electron affinity
- 6. Which molecule would have the strongest tendency to form hydrogen bonds with other identical molecules? а. Н, b. CH4 с. С.Н, d. HF 7. What kind of bond is formed when two molecules share electrons to form a molecule? a. Covalent b. Ionic c. Polar ionic d. Metallic 8. Why are transition metals special cases? a. They have two valence shells with complete octets that want to react. b. They have up to 8 electrons in their valence shell. c. They don't react with other elements because they are actually noble gases. d. They have two valence shells with an incomplete octet that want to react. 9. Name the following compound, BrF; a. Bromine pentafluoride b. Bromine fluoride c. Bromine (IV) fluoride d. Monobromine pentafluoride 10. Avron was conducting his science fair project when he came across a bottle of acid whose label read, "HSCN." What is the name of the acid that is contained within the bottle? a. Hydrocyanic acid b. Hydrothiocyanic acid c. Thiocyanic acid d. This acid does not…Beaulac Highline CHEM& 121 6) Double and triple bonds form because a. the atoms involved have high electronegativities. b. single covalent bonds do not give all of the atoms in the molecule 8 valence electrons. C. one of the atoms in the molecule has more than 8 valence electrons. d. the ions involved have charges larger than one. 0) Group IIA metals form ions with a charge. 8) Group VA nonmetals form ions with a charge. ) Group VIIA nonmetals form ions with a charge. ) List the metals not in group IA or IIA that only form one ion. ) Fill in the blanks in the following table: Polyatomic Ion Chemical Formula Polyatomic Ion Chemical Formula sulfate chlorate NO2 ammonium perbromate PO,3- CIO- nitrate bicarbonate cyanide iodite OH carbonate4. It is important to know the geometry of a molecule because the geometry A. affects the physical and chemical properties of the substance B. will give the Lewis structure of the molecule C. will determine whether the molecule is ionic or covalent D. B and C 5. If there are four L4) electron pairs around tbe central atom of a molecule these
- Which pairs of elements are likely to form ionic bonds and which pairs are likely to form covalent bonds? a. carbon and hydrogenc. hydrogen and oxygen b. sodium and sulfurd. magnesium and bromine7. What kind of bond is formed when two molecules share electrons to form a molecule? a. Covalent b. Ionic c. Polar ionic d. Metallic 8. Why are transition metals special cases? a. They have two valence shells with complete octets that want to react. b. They have up to 8 electrons in their valence shell. c. They don't react with other elements because they are actually noble gases. d. They have two valence shells with an incomplete octet that want to react. 9. Name the following compound, BrF; a. Bromine pentafluoride b. Bromine fluoride c. Bromine (IV) fluoride d. Monobromine pentafluoride 10. Avron was conducting his science fair project when he came across a bottle of acid whose label read, "HSCN." What is the name of the acid that is contained within the bottle? a. Hydrocyanic acid b. Hydrothiocyanic acid c. Thiocyanic acid d. This acid does not exist 11. What is the chemical formula for copper (II) hydroxide? а. Cu,(ОН) b. CUOH с. CuOН, d. Cu(OH),Consider the compound xenon dichloride, XeCl2 a.What is the polarity of the molecule? b. What type of bond is the Xe-Cl bond? c. How many bonding pairs of electrons are there?
- A central atom has double bonds to two atoms. Each of those outside atoms has 2 lone pairs. The shape of the molecule is a. bent b. linear c. square planar d. tetrahedral27. Which of the following is most likely to affect an element's ability to form compounds? a. atomic number b. atomic activity c. density d. atomic structure as thi e. valence f. van der Waal's forces and bizalost / K In S C C M 1Chloroform (CHC l 3 ) was one of the first anestheticsused in medicine. The chloroform moleculecontains 26 valence electrons total. How many ofthese valence electrons are part of covalent bonds?A. 26 C. 8 E. 2B. 13 D. 4