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1. Which atmospheric component does not contribute to global warming? A. H2O C. N2 D. O...
what is the predicted product from the following combination reaction? E) none of the above 33)...
what is the predicted product from the following combination
reaction?
E) none of the above 33) Which of the following produces the characteristic color of a fireworks display? A) atoms exploding B) molecules exploding C) electrons dropping to lower energy levels D) nuclei dropping to lower energy levels E) none of the above Chapter 8 34) How many atoms of cobalt equal a mass of 58.93 g? (Refer to the Periodic Table.) A) 1 B) 27 C) 58.93 D) 59...
2. Which of these quantities does not represent 1.00 mol of the indicated substance? a. 6.02...
2. Which of these quantities does not represent 1.00 mol of the indicated substance? a. 6.02 x 1023 C atoms b. 55.85 g Fe c. 12.01 g C d. 15.4 g Zn e. 6.02 x 1023 Fe atoms 3. If 0.274 moles of a substance weighs 6.66 g, what is the molar mass of the substance, in units g/mol? a. 2.28 x 102 g/mol b. 1.71 x 10 g/mol c. 4.38 x 103 g/mol d. 2.17 x 10 g/mol e....
1) 1) To convert a given number of moles into the number of atoms, one would...
1) 1) To convert a given number of moles into the number of atoms, one would multiply by which of the following factors? A) 1.66 x 10-24 atoms/1 mol B) 1 mol/6.022 x 1023 atoms C) molar mass D) 6.022 x 1023 atoms/1 mol E) 1 mol/1.66 x 10-24 atoms 2) Consider the following precipitation reaction. Which of the following correctly identifies the spectator ions in this reaction? Na2S(aq) + CuSO4(aq) → Na2SO4(aq) + CuS(s) A) Na+ and SO42- B)...
m105%20Makeup%20Exam%20(2).pdf 31) 31) To convert a given number of moles into the number of atoms, one...
m105%20Makeup%20Exam%20(2).pdf 31) 31) To convert a given number of moles into the number of atoms, one would multiply by which of the following factors? A) 1.66 x 10-24 atoms/I mol B) 1 mol/6.022 1023 atoms C) molar mass D) 6.022 * 1023 atoms/1 mol E) 1 mol/1.66 x 10-24 atoms 3 2) 32) How many atoms of sulfur are present in a 155 g sample of sulfur? [Molar mass: S 32.06 g/mol) A) 6.02 x 1023 atoms B) 2.91 x...
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...
A) C) electrons directo r y D) nutes dregte weerwyl E) none of the above 5.93...
A) C) electrons directo r y D) nutes dregte weerwyl E) none of the above 5.93 Teter Chapter 34) Mow many atoms of cobalt quadass Periodic Table.) A) 1 B) 27 C) 58.93 D) 59 E) 6.02 x 1023 35) What is the number of magnesium atoms that equal a mass of 24.5 A) 1 B) 12 C) 24 D) 6.02 x 1023 E) none of the above 36) Which of the following is equal to 1.00 mole of substance?...
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...
3) Calculate the percentage by mass of hydrogen in PtCl2(NH3)2 A) 0.672 B) 2.016 C) 1.008...
3) Calculate the percentage by mass of hydrogen in PtCl2(NH3)2 A) 0.672 B) 2.016 C) 1.008 D) 0.034 E) 1.558 4) How many molecules of CH4 are in 48.2 g of this compound? A) 1.81 x 1024 B) 4.00 C) 2.00 x 1023 D) 4.64 x 1026 E) 5.00 x 10-24 5) A sample of CH2F2 with a mass of 19 g contains A) 9.5 B) 3.3 * 1024 C) 2.2 x 1023 atoms of F. D) 4.4 x 1023...
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)...
35) What is the mass of a 0.150 mole sample of sulfur? B) 0.208 g 35)...
35) What is the mass of a 0.150 mole sample of sulfur? B) 0.208 g 35) A) 4.68 g E)4.81 g D) 214 g C) 5.17 g 36) Lithium oxide can be produced by the reaction shown below. If a manufacturing company wants to make 25.0 g of Li20, what mass of Li is necessary? [Molar masses: Li, 6.94 g/mol; O, 16.00 g/mol] 36) 4Li(s)+O2)-2Li20(s) A) 0.0861 g Li B) 2.903 g Li C) 23.2 g Li D) 12.5 g...
what is the predicted product from the following combination
reaction?
E) none of the above 33) Which of the following produces the characteristic color of a fireworks display? A) atoms exploding B) molecules exploding C) electrons dropping to lower energy levels D) nuclei dropping to lower energy levels E) none of the above Chapter 8 34) How many atoms of cobalt equal a mass of 58.93 g? (Refer to the Periodic Table.) A) 1 B) 27 C) 58.93 D) 59...
2. Which of these quantities does not represent 1.00 mol of the indicated substance? a. 6.02 x 1023 C atoms b. 55.85 g Fe c. 12.01 g C d. 15.4 g Zn e. 6.02 x 1023 Fe atoms 3. If 0.274 moles of a substance weighs 6.66 g, what is the molar mass of the substance, in units g/mol? a. 2.28 x 102 g/mol b. 1.71 x 10 g/mol c. 4.38 x 103 g/mol d. 2.17 x 10 g/mol e....
1) 1) To convert a given number of moles into the number of atoms, one would multiply by which of the following factors? A) 1.66 x 10-24 atoms/1 mol B) 1 mol/6.022 x 1023 atoms C) molar mass D) 6.022 x 1023 atoms/1 mol E) 1 mol/1.66 x 10-24 atoms 2) Consider the following precipitation reaction. Which of the following correctly identifies the spectator ions in this reaction? Na2S(aq) + CuSO4(aq) → Na2SO4(aq) + CuS(s) A) Na+ and SO42- B)...
m105%20Makeup%20Exam%20(2).pdf 31) 31) To convert a given number of moles into the number of atoms, one would multiply by which of the following factors? A) 1.66 x 10-24 atoms/I mol B) 1 mol/6.022 1023 atoms C) molar mass D) 6.022 * 1023 atoms/1 mol E) 1 mol/1.66 x 10-24 atoms 3 2) 32) How many atoms of sulfur are present in a 155 g sample of sulfur? [Molar mass: S 32.06 g/mol) A) 6.02 x 1023 atoms B) 2.91 x...
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...
A) C) electrons directo r y D) nutes dregte weerwyl E) none of the above 5.93 Teter Chapter 34) Mow many atoms of cobalt quadass Periodic Table.) A) 1 B) 27 C) 58.93 D) 59 E) 6.02 x 1023 35) What is the number of magnesium atoms that equal a mass of 24.5 A) 1 B) 12 C) 24 D) 6.02 x 1023 E) none of the above 36) Which of the following is equal to 1.00 mole of substance?...
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...
3) Calculate the percentage by mass of hydrogen in PtCl2(NH3)2 A) 0.672 B) 2.016 C) 1.008 D) 0.034 E) 1.558 4) How many molecules of CH4 are in 48.2 g of this compound? A) 1.81 x 1024 B) 4.00 C) 2.00 x 1023 D) 4.64 x 1026 E) 5.00 x 10-24 5) A sample of CH2F2 with a mass of 19 g contains A) 9.5 B) 3.3 * 1024 C) 2.2 x 1023 atoms of F. D) 4.4 x 1023...
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)...
35) What is the mass of a 0.150 mole sample of sulfur? B) 0.208 g 35) A) 4.68 g E)4.81 g D) 214 g C) 5.17 g 36) Lithium oxide can be produced by the reaction shown below. If a manufacturing company wants to make 25.0 g of Li20, what mass of Li is necessary? [Molar masses: Li, 6.94 g/mol; O, 16.00 g/mol] 36) 4Li(s)+O2)-2Li20(s) A) 0.0861 g Li B) 2.903 g Li C) 23.2 g Li D) 12.5 g...
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