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Study Resources (Chemistry)

21) What is the chemical name given to the compound whose formula is N2O4? A) nitrogen quadraoxide B) nitrogen (IV) oxide C) nitrogen (II) oxygen (IV) D) dinitrogen tetraoxide 22) What is the chemical formula of a compound named ammonium sulfide? A) NH4S B) (NH4)2S C) (NH4)S2 D) (NH4)2S3 23) What is the chemical formula of the compound named potassium.
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51) The correct name for ammonia is nitrogen hydride. 52) Another name for the hydrogen sulfate anion is bisulfate. 53) There are twice as many hydrogen as oxygen atoms in the acetate anion. 54) There are twice as many oxygen as hydrogen atoms in the dihydrogen phosphate anion. 55) The perchlorate, phosphate and sulfate.
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Match each molecule in the questions  with an angle around the central atom that appears in the list below.   A) close to 120° B) 109° C) 180° D) close to 109° E) 120° 15) hydrogen fluoride 16) water 17) ammonia 18) boron trifluoride 19) acetylene, C2H2 20) sulfur dioxide 21) sulfur trioxide 22) ammonium ion 23) ethylene, C2H4 24) carbon tetrachloride 25) hydrogen cyanide 26) phosphorus trihydride 27).
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Match each element with the number of electrons it needs to fulfill its octet which appears in the list below.   A) 6 B) 2 C) 3 D) 0 E) 4 F) 5 G) 7 H) 1 52) oxygen 53) nitrogen 54) carbon 55) sulfur 56) phosphorus 57) hydrogen 58) beryllium 59) fluorine 60) lithium 61) chlorine 62) argon 63) boron 64) neon 65) helium 66) sodium 67) aluminum .
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Match the compounds with the total number of non-bonding pairs of electrons in the list below.   A) 4 B) 6 C) 1 D) 2 E) 9 F) 3 G) 0   91) ammonia 92) water 93) methane 94) hydrogen chloride 95) carbon monoxide 96) carbon dioxide 97) phosphorus trihydride 98) beryllium fluoride 99) boron trichloride 100) magnesium chloride 101) calcium oxide 102) aluminum chloride 103) nitrogen gas 104) silicon tetrahydride 105) calcium bromide .
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31) Which of the following double-bond bearing compounds is non-polar? A) SO2 B) CH2O C) CS2 D) SOCl2 32) Which of the following multiple-bond compounds is pure covalent? A) H2CO B) Cl2SO C) O2 D) CO 33) Which of the following multiple-bond compounds is polar? A) N2 B) O2 C) SOCl2 D) CO2 34) Which of the following will be the least soluble in water? A).
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Match the total number of atoms that appear in the list below with every binary compound that appears in the questions.   A) 5 B) 4 C) 7 D) 2 E) 3   121) cuprous sulfide 122) cobaltic chloride 123) ferric oxide 124) stannic nitride 125) stannous oxide 126) mercurous oxide 127) calcium hydride. 128) aluminum oxide 129) barium fluoride 130) cobaltous sulfide 131) cupric fluoride 132) aluminum hydride .
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Match every compound with the proper account of bonds that appear in the list below.   A) has only double bonds B) has single bond(s) and one double bond C) has only triple bond(s) D) has single bond(s) and one triple bond E) only single bonds   106) carbon dioxide 107) ammonia 108) hydrogen cyanide 109) ethene 110) acetylene 111) hydrazine 112) nitrogen 113) oxygen .
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21) Which of the following is not tetrahedral? A) carbon tetrachloride B) chloroform, CHCl3 C) ethane, C2H6 D) boron trifluoride 22) Which of the following is tetrahedral? A) sulfur trioxide B) sulfur dioxide C) sulfur dichloride D) ammonium ion 23) Which of the following is bent? A) water B) sulfur dioxide C) carbon dioxide D) both A and B 24) Which of the following is.
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Match each pair of elements with the general expected formula that appears in the list below. A) A4B3 B) A3B2 C) A2B D) AB3 E) A4B F) A2B3 G) A3B H) AB4 I) AB J) AB2 68) carbon and chlorine 69) hydrogen and oxygen 70) nitrogen and fluorine 71) aluminum and sulfur 72) boron and fluorine 73) silicon and oxygen 74) aluminum and nitrogen 75) magnesium and oxygen 76).
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5.2   True/False Questions 1) The ion P-3 is named phosphate. 2) Covalent bonds are formed between atoms that share pairs of electrons. 3) The compound P2O5 has the name diphosphorus pentaoxide. 4) A single, neutral chlorine atom has seven valence electrons. 5) The electrons in a carbon-chlorine covalent bond are "shared" exactly equally between these.
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31) Which of the following is not a binary compound? A) sodium chloride B) sodium hypochlorite C) sodium sulfide D) sodium hydride 32) Which of the following is a binary compound? A) sodium perchlorate B) sodium chlorate C) sodium hypochlorite D) sodium chloride 33) When a binary compound is composed of a metal and a non-metal it is called ________. A).
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5.1   Multiple-Choice Questions 1) Which of the following is considered an elemental substance? A) I2 (iodine) B) H2O (water) C) Fe (an iron nail) D) A and C are elemental substances. E) All of the preceding are elemental substances. 2) Which of the following substances is molecular (composed of individual molecules) in composition? A) carbon, as coal B) water,.
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6.1   Multiple-Choice Questions 1) Which of the following would you expect to be the most polar molecule? A) H2S B) H2Se C) H2Te D) H2O 2) Which of the following compounds contains bonds that are the most polar (greatest electronegativity difference between hydrogen and the central atom)? A) H2O B) H2S C) H2Se D) H2Te 3) Which of the following pictures.
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131) CuClO may be called ________. A) cuprous chlorate B) cupric chlorate C) cuprous hypochlorite D) cuprous chlorite 132) Sodium acetate's formula is ________. A) NaC2H2O2 B) NaCH2O2 C) NaC2H3O2 D) NaC2H4O 133) The formula for sodium sulfite is ________. A) Na2S B) Na2SO3 C) Na2S2O3 D) Na2SO4 134) Which of the following anions has the largest number of oxygen atoms and at the same.
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Match each element  with the number of valence electrons that appears in the list below.   A) 7 B) 2 C) 3 D) 4 E) 5 F) 1 G) 6 H) 8   36) oxygen 37) nitrogen 38) carbon 39) sulfur 40) phosphorus 41) hydrogen 42) calcium 43) fluorine 44) lithium 45) chlorine 46) argon 47) boron 48) neon 49) helium 50) sodium 51) aluminum .
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81) Nitrogen trifluoride has ________ lone pairs of electrons. A) 2 B) 5 C) 8 D) 10 82) Which of the following has at least one double bond? A) hydrogen B) carbon dioxide C) chlorine D) nitrogen 83) Which of the following has a triple bond? A) water B) carbon dioxide C) oxygen D) nitrogen 84) Which of the following has more than one double.
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6.4   Matching Questions Match each molecule in the questions with a shape that appears in the list below.   A) linear B) tetrahedral C) bent D) pyramidal E) trigonal 1) hydrogen fluoride 2) water 3) ammonia 4) boron trifluoride 5) acetylene, C2H2 6) sulfur dioxide 7) sulfur trioxide 8) ammonium ion 9) ethylene, C2H4 10) carbon tetrachloride 11) hydrogen cyanide 12) phosphorus trihydride 13) nitrogen trifluoride 14) carbon disulfide .
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61) The number of valence electrons in the ammonium ion is 10. 62) The compound P2O3 is called diphosphorus pentoxide. 63) The compound Ca3(PO4)3 is called dicalcium triphosphate. 64) The compound CS2 is called carbon disulfide. 65) Fe(OH)2 may also be called ferrous hydroxide. 66) Ca3P2 may be called calcium phosphate. 67) The bonds that are.
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6.2   True/False Questions 1) When drawing the three-dimensional structure diagram of a molecule the bold line goes back behind the page. 2) The ball-and-stick model emphasizes the bonding pattern. 3) In the VSEPR model the multiple bond is treated as a single electron group, just the way a single bond is treated. 4) The.
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Match the names in the list below with each of the sulfur containing anions that appear in the questions. A) sulfate B) bisulfate C) hydrogen sulfide D) sulfide E) bisulfite F) thiocyanate G) sulfite   8) S-2 9) SO3-2 10) SO4-2 11) SCN- 12) HS- 13) HSO3- 14) HSO4- Match the names in the list below with each of the chlorine containing anions that appear in.
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41) What is the molecular shape of H2S? A) tetrahedral B) pyramidal C) linear D) bent 42) What is the molecular shape of CC14? A) tetrahedral B) pyramidal C) linear D) bent 43) What is the molecular shape of NO2- A) tetrahedral B) pyramidal C) linear D) bent 44) What is the molecular shape of CH2O? A) tetrahedral B) bent C) trigonal planar D) pyramidal 45) What is the steric.
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5.3   Short Answer Questions Draw the dot structures for the atomic or molecular species shown. Be sure to include all relevant resonance structures. 1) NO3- 2) CN- 3) BF3 4) H2Se 5) O3 (ozone) 6) CH2ClF 7) NI 3 8) SO2 9) Would you expect a chemical bond formed between the elements boron and chlorine to be ionic.
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111) Which of the following does not have a charge of -1? A) bicarbonate B) bisulfate C) hydrogen phosphate D) nitrite 112) Which of the following ions has a relative ratio of oxygen atoms to the central atom that is not a whole number? A) dichromate B) bicarbonate C) permanganate D) perchlorate 113) Which is the only ion that has.
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51) Which of the following pairs has the same number valence electrons? A) magnesium and potassium B) lithium and calcium C) argon and xenon D) phosphorus and tellurium 52) Which of the following is the most electronegative? A) fluorine B) oxygen C) carbon D) sodium 53) Which of the following is the least electronegative? A) fluorine B) oxygen C) carbon D) sodium 54) The expected.
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Classify each of the following as ground state, excited state, or impossible electronic configurations.   A) Excited State B) Impossible state C) Ground State   37) 1s22s22p63s13p3 38) 1s22s22p63s23p8 39) 1s22s22p63s23p64s1 40) 1s22s22p63s23p64s24p1 41) 1s22s22p63s23p64s23d5 42) 1s22s22p63s23p64s13d104p1 43) 1s22s22p63s23p64s23d12 Match the scientist with his contribution from the list below.   A) Is the father of quantum physics B) Suggested the existence of a tiny, massive nucleus C).
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Match the total number of atoms in the list below  with every compound that appears in the questions.   A) 4 B) 16 C) 13 D) 15 E) 10 F) 3 G) 9 H) 8 I) 7 J) 11 K) 6 L) 5   133)  cupric sulfite 134) cobaltic chlorite 135) ferric cyanide 136) stannic chromate 137) stannous hypochlorite 138) mercurous dihydrogen phosphate 139) sodium cyanide 140) aluminum perchlorate 141) barium bisulfate 142) potassium.
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11) Carbon tetrachloride contains polar bonds and is a polar molecule. 12) Bonds are regions of negative charge and therefore repel each other. 13) When determining the shape of a molecule, count all electron groups around the central atom. 14) When naming the shape of a molecule count the lone pairs. 15) One can.
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Match the fact information to the molecular species that appear in the list below.   A) CO B) LiCl C) N2 D) Ca+2 E) CH4 F) Cr2O7-2 G) CO2   114) It is an ionic compound. 115) It is a molecule with a triple bond. 116) It is a cation. 117) It is a covalent, non-polar molecule. 118) It is an anion. 119) It has.
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101) Which of the following polyatomic ions has a -2 charge? A) ammonium B) carbonate C) dihydrogen phosphate D) acetate 102) Which of the following polyatomic ions is the most negatively charged? A) ammonium B) carbonate C) phosphate D) acetate 103) Which of the following polyatomic ions has the least atoms per formula unit? A) ammonium B) carbonate C) dihydrogen phosphate D) acetate 104) Which.
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91) Which of the following -ous ending cations does not have a +2 charge? A) ferrous B) stannous C) cobaltous D) mercurous 92) Which of the following -ic ending cations have the most positive charge? A) cobaltic B) ferric C) stannic D) mercuric 93) Which of the following -ic ending cations have the least positive charge? A) cobaltic B) ferric C) stannic D) mercuric 94).
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11) Natural sugars are broken down into glucose in our body. 12) Water, H2O and hydrogen peroxide, H2O2, have identical properties. 13) Energy is released as two atoms, such as two hydrogen atoms, form, a bond. 14) When covalent bonds are broken energy is released. 15) A single bond is always represented by two.
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61) The expected formula between potassium and sulfur is ________. A) KS B) K2S3 C) K2S D) KS2 62) The expected formula between hydrogen and nitrogen is ________. A) HN B) NH2 C) NH3 D) NH4 63) The central atom in sulfuric acid is ________. A) oxygen B) sulfur C) hydrogen D) none of the above 64) What is the number of single bonds in.
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