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Study Resources (Chemistry)

10.1   Multiple Choice Questions 1) 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 eight valence electrons. C) one of the atoms in the molecule has more than 8 valence electrons. D) the ions involved have.
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8.3   True/False Questions 1) A chemical reaction has the reactants on the left and products on the right separated by a reaction arrow. 2) When methane, CH4, reacts with oxygen, one product is nitrogen gas. 3) When C2H4 reacts with oxygen, one product is water. 4) When nitrogen reacts with hydrogen.
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10.2   Bimodal Questions 1) The diatomic molecule N2 is held together by a ________ covalent bond. A) double B) single C) ionized D) triple E) polar 2) The diatomic molecule Cl2 is held together by a ________ covalent bond. A) single B) double C) ionized D) polar E) triple 3) The shape of a molecule of methane, CH4, is ________. A).
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11) The most electronegative element is fluorine. 12) The oxygen-hydrogen bond is a polar covalent bond. 13) Water molecules are attracted to each other by hydrogen bonds. 14) The strongest forces between CH4 molecules are hydrogen bonds. 15) Fats are the building blocks of proteins. 16) The shape of a.
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7.3   Matching Questions Match the compound formula with the correct molar mass. A) 84.01 g B) 2.016 g C) 153.8 g D) 39.95 g E) 28.01 g F) 134.5 g G) 72.00 g H) 44.01 g I) 87.92 g J) 4.032 g K) 41.99 g L) 83.00 g M) 110.98 g N) 32.04 g 1) CuCl2 2) NaHCO3 3) Iron(II) sulfide 4) carbon dioxide 5) methanol, CH3OH 6) hydrogen gas 7).
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21) The following reaction is an example of a ________ reaction. 2 C2H6 (g) + 7 O2 (g) → 4 CO2 (g) + 6 H2O (g) A) displacement B) single replacement C) combustion D) decomposition E) double replacement 22) Which products would result from the double replacement reaction between MgCl2 (aq) and Na2CO3 (aq)? A) Na2Cl2.
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Identify each of the following molecules as polar or nonpolar. 8) carbon tetrachloride 9) water 10) carbon dioxide 11) hydrogen sulfide 12) hydrogen fluoride 13) A bond in which the electrons are shared between atoms is a ________ bond. 14) The strongest attractive forces between N2 molecules are ________. 15) The strongest attractive forces between.
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11) Magnesium sulfate reacts with barium chloride according to the following balanced equation. If 1.20 g of magnesium sulfate is allowed to react with 10.0 g of barium chloride in a water solution, what is the theoretical yield of barium sulfate? MgSO4(aq) + BaCl2(aq) → BaSO4(s) + MgCl2(aq) A) 1.20 g B).
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9.2   Bimodal Questions 1) Magnesium sulfate reacts with barium chloride according to the following balanced equation. How many moles of barium sulfate are formed from 0.0831 mol of magnesium sulfate? MgSO4(aq) + BaCl2(aq) → BaSO4(s) + MgCl2(aq) A) 1.00 mol B) 0.500 mol C) 0.200 mol D) 0.0831 mol E) 0.166 mol Barium chloride and sodium sulfate.
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31) Magnesium reacts with oxygen gas to produce magnesium oxide, light, and heat. This reaction is A) a combination reaction. B) a decomposition reaction. C) a single replacement reaction. D) a double replacement reaction. E) a catalysis reaction. 32) In the reaction of silver nitrate with copper metal, metallic silver comes out of solution, and.
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41) The building blocks of proteins are  A) fatty acids. B) carbohydrates. C) amino acids. D) steroids. E) not known. 42) Proteins are A) chains of amino acids. B) important biological molecules. C) transport molecules in the body. D) part of the structural components in the body. E) all of the above 43) When a solid is converted directly to.
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31) The difference in electronegativity between hydrogen and sulfur is 0.4. What type of bond is found in the molecule H2S? A) polyatomic B) ionic C) nonpolar covalent D) polar covalent E) double covalent 32) The difference in electronegativity between potassium and oxygen is 2.7. What type of bond is expected in the compound K2O?.
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10.3   Matching Questions Indicate the type of bonding you would expect between the following elements. A) polar covalent B) ionic C) none D) nonpolar covalent 1) Na and F 2) N and F 3) F and F 4) He and F 5) H and F Match the molecule to its shape. A) trigonal planar B) linear C) sulfur oxide D) tetrahedral E) bent F) trigonal pyramidal 6).
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10.4   True/False Questions 1) Oxygen, O2, is held together by a triple ionic bond. 2) N2 is held together by a multiple covalent bond. 3) The total number of valence electrons in the fluorine molecule, F2, is 14. 4) The carbon dioxide molecule contains a triple covalent bond. 5) Carbon dioxide.
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21) A hydrocarbon contains only the elements ________ and ________. 22) The condensed structural formula of hexane is ________. 23) What is the complete structural formula for an alkane with three carbon atoms? 24) What is the condensed structural formula for an continuous chain alkane with four carbon atoms? 25).
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8.4   Short Answer Questions 1) Write the balanced equation for the reaction of copper(II) chloride with sodium hydroxide to produce copper(II) hydroxide and sodium chloride. 2) Write the balanced equation for the reaction of sodium hydroxide with sulfuric acid to give water and sodium sulfate. 3) Write the balanced equation for.
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21) Which of the following elements has the lowest electronegativity? A) Li B) C C) N D) O E) F 22) Which of the following compounds contains a polar covalent bond? A) NaF B) HCl C) Br2 D) MgO E) O2 23) Which of the following compounds contains an ionic bond? A) NH3 B) H2O C) CaO D) H2 E) CH4 24) If the electronegativity.
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9.4   Short Answer Questions 1) Acetylene gas, C2H2, reacts with oxygen according to the following equation. If 5.00 mol of acetylene react completely with sufficient oxygen, how many mol of carbon dioxide are produced? 2 C2H2(g) + 5 O2 (g) → 4CO2(g) + 2H2O(g) acetylene 2) Acetylene gas, C2H2, reacts with oxygen according.
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9.1   Multiple Choice Questions 1) Which of the following correctly illustrates the conservation of mass for the reaction below? 4Na(s) + O2(g) → 2Na2O(s) A) 23.0 g Na, 16.0 g O2, 39.0 g Na2O B) 92.0 g Na, 16.0 g O2, 108 g Na2O C) 92.0 g Na, 32.0 g O2, 124 g Na2O D).
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11) Hydrogenation is used to convert alkenes and alkynes to alkanes. 12) The functional group of amines is ?OH. 13) An alkyne has a carbon-carbon double bond. 14) Carbohydrates contain hydroxyl and aldehyde or ketone functional groups. 15) Lipids are soluble in water. 16) Proteins are biologically active polymers of.
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8.1   Multiple Choice Questions 1) A chemical equation is balanced when A) the total number of molecules is the same in reactants and products. B) the total number of ions is the same in reactants and products. C) the sum of the coefficients of the reactants is equal to the sum of the.
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11.1   Multiple Choice Questions 1) Which of the following is NOT part of the kinetic molecular theory of gases? A) A gas is composed of very small particles. B) There is very little empty space in a gas. C) Gas particles move rapidly. D) Gas particles do not attract or repel one another. E) Gas.
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