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14) How is the reaction shown below best classified? 2NaCl(s) + F2(g) → 2NaF(s) + Cl2(9)...
12) 12) Choose the best classification of the reaction represented by the following equation: 2Fe3 (ag)+...
12) 12) Choose the best classification of the reaction represented by the following equation: 2Fe3 (ag)+ Fe(s)3Fe2+(ag) A) oxidation-reduction B) combustion C) decomposition D) precipitation E) acid-base 13) 13) Prozac, a drug prescribed to treat depression, has the formula C17H18F3NO. If a patient was administered 15.0 mg of Prozac, how many moles of Prozac did he receive? [Molar mass: Prozac, 309.36 g/mol] A) 20.6 mol B) 48.5 mol C) 2.92 x 1019 mol D) 4.85x 10-5mol E) 4640 mol 14)...
10) 10) Consider the hypothetical reaction: 3A2 + 2B - C + 2D Ir 6.0 moles of A are mixed with 2.0 moles of B, what...
10) 10) Consider the hypothetical reaction: 3A2 + 2B - C + 2D Ir 6.0 moles of A are mixed with 2.0 moles of B, what is the maximum amount of C that can be formed? A) 6.0 mol B) 8.0 mol C) 2.0 mol D) 1.0 mol E) 5.0 mol 11) What is the mass of 4.35 moles of aluminum? A) 9.78 x 1022 B) 2.62 x 1024 g C) 0.1638 D) 1178 E) 27.8 g 12) 12) Choose...
10) Consider the hypothetical reaction: 3A2+ 2B C+ 2D If 6.0 moles with 2.0 moles of...
10) Consider the hypothetical reaction: 3A2+ 2B C+ 2D If 6.0 moles with 2.0 moles of B, what is the maximum amount of C that can be formed? A) 6.0 mol E) 5.0 mol D) 1.0 mol C) 2.0 mol B) 8.0 mol ues 11) 11) What is the mass of 4.35 moles of aluminum? A) 9.78 x 1022 g B) 2.62 x 1024 C)0.163 g D) 117 g E) 27.8 g g 12) 12) Choose the best classification of...
20) 20) Which of the following statements concerning a voltaic cell is FALSE A) At the...
20) 20) Which of the following statements concerning a voltaic cell is FALSE A) At the anode a substance will lose electrons. B) A voltaic cell uses an oxidation-reduction reaction to produce electrical energy. C) The oxidation half reaction occurs at the cathode. D) The cell consists of two half cells. E) The anode and the cathode are separated by a salt bridge. - 21) The fluoride rinse in dental offices usually contains sodium fluoride, Sodium fluoride 2 1 can...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
1. Choose the correct answer(s) to complete the following statement: One mole of oxygen (O2) gas...
1. Choose the correct answer(s) to complete the following statement: One mole of oxygen (O2) gas is equivalent to _____________________. I. 6.022 × 1023 molecules of oxygen II. 6.022 × 1023 atoms of oxygen III. one mole of oxygen atoms IV. two moles of oxygen atoms 2. 50.0 g of Cl2 contains ________ mol Cl2. a. 0.705 b.1.41 c. 4.24 × 1023 d. 1775 e. 50.0 3. The number of grams in 0.350 mol of Na is a. 11.0. b....
all 25. According to the VSEPR theory, what is the geometry (shape) around the phospt atom...
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25. According to the VSEPR theory, what is the geometry (shape) around the phospt atom in the Lewis structure shown below? H-P-H D) E) trigonal pyramidal tetrahedral A) linear B) bent (angular) C) trigonal planar 26. Which of following molecules is polar? B) H-B-H 27. How is the reaction shown below best classified? 2NaCl(s)+F:) - NaF(s) + Cl() A) decomposition B) combination C) single-replacement D) double-replacement E) precipitation 28. How is the reaction shown below best classified? 2HgO(s) 2Hg()...
all 25. According to the VSEPR theory, what is the geometry (shape) around the phospt atom...
all
25. According to the VSEPR theory, what is the geometry (shape) around the phospt atom in the Lewis structure shown below? H-P-H D) E) trigonal pyramidal Tetrahedral A) linear B) bent (angular) C) trigonal planar 26. Which of following molecules is polar? B) H-B-H 27. How is the reaction shown below best classified? 2NaCl(s)+F($) - NaF(s) + Cla(e) A) decomposition B) combination C) single-replacement D) double-replacement E) precipitation 28. How is the reaction shown below best classified? 2HgO(s) 2Hg(1)...
39) What property of liquids explains the formation of leaves? A) surface tension B) adhesion C)...
39) What property of liquids explains the formation of leaves? A) surface tension B) adhesion C) viscosity D) vapor pressure E) None of the choices are correct. mation of spherical water droplets on green 3 9) - um at constant pressure and temperature has the volume 40) 40) A balloon containing helium at constant pres doubled by adding a more helium. Which ' adding a more helium. Which statement(s) isare) TRUE? A) The number of moles of helium doubled. B)...
45. Refer to the following equation: 4NH3(g) + 70,() → 4NO2()+6H20() How many moles of ammonia...
45. Refer to the following equation: 4NH3(g) + 70,() → 4NO2()+6H20() How many moles of ammonia will be required to produce 10.5 mol of water a. 4.20 mol b. 10.5 mol c. 7.00 mol d. 5.25 mol e. none of these 46. Refer to the following equation: 4NH3(Ⓡ) + 702() → 4NO2(%) +6H20(g) How many molecules of NO2 are produced when 4.16 mol of ammonia is completely reacted a. 16.64 b. 5.01 X 1024 c. 2.51 1024 d. 191 e....
12) 12) Choose the best classification of the reaction represented by the following equation: 2Fe3 (ag)+ Fe(s)3Fe2+(ag) A) oxidation-reduction B) combustion C) decomposition D) precipitation E) acid-base 13) 13) Prozac, a drug prescribed to treat depression, has the formula C17H18F3NO. If a patient was administered 15.0 mg of Prozac, how many moles of Prozac did he receive? [Molar mass: Prozac, 309.36 g/mol] A) 20.6 mol B) 48.5 mol C) 2.92 x 1019 mol D) 4.85x 10-5mol E) 4640 mol 14)...
10) 10) Consider the hypothetical reaction: 3A2 + 2B - C + 2D Ir 6.0 moles of A are mixed with 2.0 moles of B, what is the maximum amount of C that can be formed? A) 6.0 mol B) 8.0 mol C) 2.0 mol D) 1.0 mol E) 5.0 mol 11) What is the mass of 4.35 moles of aluminum? A) 9.78 x 1022 B) 2.62 x 1024 g C) 0.1638 D) 1178 E) 27.8 g 12) 12) Choose...
10) Consider the hypothetical reaction: 3A2+ 2B C+ 2D If 6.0 moles with 2.0 moles of B, what is the maximum amount of C that can be formed? A) 6.0 mol E) 5.0 mol D) 1.0 mol C) 2.0 mol B) 8.0 mol ues 11) 11) What is the mass of 4.35 moles of aluminum? A) 9.78 x 1022 g B) 2.62 x 1024 C)0.163 g D) 117 g E) 27.8 g g 12) 12) Choose the best classification of...
20) 20) Which of the following statements concerning a voltaic cell is FALSE A) At the anode a substance will lose electrons. B) A voltaic cell uses an oxidation-reduction reaction to produce electrical energy. C) The oxidation half reaction occurs at the cathode. D) The cell consists of two half cells. E) The anode and the cathode are separated by a salt bridge. - 21) The fluoride rinse in dental offices usually contains sodium fluoride, Sodium fluoride 2 1 can...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
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25. According to the VSEPR theory, what is the geometry (shape) around the phospt atom in the Lewis structure shown below? H-P-H D) E) trigonal pyramidal tetrahedral A) linear B) bent (angular) C) trigonal planar 26. Which of following molecules is polar? B) H-B-H 27. How is the reaction shown below best classified? 2NaCl(s)+F:) - NaF(s) + Cl() A) decomposition B) combination C) single-replacement D) double-replacement E) precipitation 28. How is the reaction shown below best classified? 2HgO(s) 2Hg()...
all
25. According to the VSEPR theory, what is the geometry (shape) around the phospt atom in the Lewis structure shown below? H-P-H D) E) trigonal pyramidal Tetrahedral A) linear B) bent (angular) C) trigonal planar 26. Which of following molecules is polar? B) H-B-H 27. How is the reaction shown below best classified? 2NaCl(s)+F($) - NaF(s) + Cla(e) A) decomposition B) combination C) single-replacement D) double-replacement E) precipitation 28. How is the reaction shown below best classified? 2HgO(s) 2Hg(1)...
39) What property of liquids explains the formation of leaves? A) surface tension B) adhesion C) viscosity D) vapor pressure E) None of the choices are correct. mation of spherical water droplets on green 3 9) - um at constant pressure and temperature has the volume 40) 40) A balloon containing helium at constant pres doubled by adding a more helium. Which ' adding a more helium. Which statement(s) isare) TRUE? A) The number of moles of helium doubled. B)...
45. Refer to the following equation: 4NH3(g) + 70,() → 4NO2()+6H20() How many moles of ammonia will be required to produce 10.5 mol of water a. 4.20 mol b. 10.5 mol c. 7.00 mol d. 5.25 mol e. none of these 46. Refer to the following equation: 4NH3(Ⓡ) + 702() → 4NO2(%) +6H20(g) How many molecules of NO2 are produced when 4.16 mol of ammonia is completely reacted a. 16.64 b. 5.01 X 1024 c. 2.51 1024 d. 191 e....
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