Homework Answers
A:- Exothermic reaction is defined as, during the chemical reaction which releases energy through light or heat is called as exothermic reaction.
The given balanced chemical reaction,
C6H12O6(s) --------> 2 C2H5OH (l) + 2 CO2(g), delta H = - 16 kcal
The enthalpy chenge (delta H) of the given reaction is negative, that means this reaction releases energy as in the form of heat (16 kcal). So it is exothermic reaction.
A:- Exothermic
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value: 1.00 points 1 attempt left Check my work Select the single best answer. Is the...
1 attempt left Check my work Select the single best answer. Biological reduction of pyruvic acid,...
1 attempt left Check my work Select the single best answer. Biological reduction of pyruvic acid, catalyzed by the enzyme lactate dehydrogenase, gives (+)-lactic acid, represented by the Fischer projection shown. What is the configuration of (t)-lactic acid according to the Cahn-Ingold-Prelog R-S notational system? HO biological reduction E 4- HO- 7 CHE Pyruvic acid (Lactic acid References eBook & Resources Multiple Choice Type here to search
1 attempts left Check my work Select the single best answer. Which of the following does...
1 attempts left Check my work Select the single best answer. Which of the following does not represent a Lewis acid-base reaction? (a) H2O +H= H30+ (b) NH3 + BF3 = H3NBF3 (c) PF3 + F2 = PF5 (d) Al(OH)3 + OH = Al(OH)4 OO Type here to search
Question 1 (of 15) value 1.00 points 3 attempts left Check my work Be sure to...
Question 1 (of 15) value 1.00 points 3 attempts left Check my work Be sure to answer all parts. Enter the your answers using scientific notation. Repo So Calculate the [H3O+] and [OH ] of a sodium hydroxide solution with a pH = 13.00. [H,0*]=C 10 (select) M [OH ]= * 10 (select) M Guided * Type here to search
Question 8 (of 9) value 1.00 points 3 attempts left Check my work List the three...
Question 8 (of 9) value 1.00 points 3 attempts left Check my work List the three classes of RNA molecules. Select the single best answer. O transcript RNA, ribosomal RNA, and transpose RNA O transcript RNA, mitochondrial RNA, and transpose RNA Omessenger RNA, ribosomal RNA, and transfer RNA messenger RNA, mitochondrial RNA, and transfer RNA K Question 9 (of 9) value: 1.00 points 3 attempts left Check my work Which is more likely to be a silent mutation: a point...
value 1.00 points 1 attempts left Check my work Enter your answer in the provided box....
value 1.00 points 1 attempts left Check my work Enter your answer in the provided box. A buffer solution is prepared in such a way that the concentration of propanoic acid is 1.92 x 10 Mand the concentration of sodium propanoate is 1.51 x 10° M. If the buffer equilibrium is described by CH3COOH(aq) + H20(1) = H2O*(aq) + CH3C00 (aq) Gul propanoic acid propanoate ion with K = 1.34 x 105 calculate the pH of the solution. pH =...
value: 1.00 points 5 attempts left Check my work Compute the volume by rounding all intermediate...
value: 1.00 points 5 attempts left Check my work Compute the volume by rounding all intermediate calculations to one decimal place. Use the value of a from your calculator or a = 3.1416. a. Right cone 7 cm 6 cm The volume is cm? b. Oblique rectangular prism T 6 cm 1 cm 7 cm The volume is cm. Type here to search
value: .0.25 points 3 attempts left Check my work A rocket can be powered by the...
value: .0.25 points 3 attempts left Check my work A rocket can be powered by the reaction between dinitrogen tetroxide and hydrazine: Report pro Hint Solutio Guided Sol N204()+2 N2H4の→3N2(g) +4H2O(g) An engineer designed the rocket to hold 2.55 kg N,0, and excess gisg How much N2 would be produced according to the engineer's design? Enter your answer in scientific notation. select)g N2 O Type here to search
7. value 0.00 points 3 attempts left Check my work Calculate the number of mol corresponding...
7. value 0.00 points 3 attempts left Check my work Calculate the number of mol corresponding to 19.0 g Be. Enter your answer in the provided box. mol Be value 1.00 points 3 attempts left Check my work Calculate the number of mol corresponding to 0.065 kg Si. Enter your answer in the provided box. mol Si 9. value 0.00 points 3 attempts left Check my work What is the average molar mass of the following elements? Be sure to...
Question 11 of 15) value 1.00 points 3 attempts left Check my work Enter your answer in the provided box. solution...
Question 11 of 15) value 1.00 points 3 attempts left Check my work Enter your answer in the provided box. solution of NaOH. Calculate the pH of a 1.0 x 10M pH= Question 14 (of 15) value: 1.00 points 3 attempts left Check my work Enter your answer in the provided box. Calculate the pH of a solution with a H2O concentration of: 1.8 x 10-6 M
3 attempts left Check my work Select the single best answer. Which force opposes vaporization of...
3 attempts left Check my work Select the single best answer. Which force opposes vaporization of CH3NH2? O ion-induced dipole forces O hydrogen bonding forces O ionic bonding forces O ion-dipole forces O dipole-dipole forces O dipole-dipole forces O dispersion forces
1 attempt left Check my work Select the single best answer. Biological reduction of pyruvic acid, catalyzed by the enzyme lactate dehydrogenase, gives (+)-lactic acid, represented by the Fischer projection shown. What is the configuration of (t)-lactic acid according to the Cahn-Ingold-Prelog R-S notational system? HO biological reduction E 4- HO- 7 CHE Pyruvic acid (Lactic acid References eBook & Resources Multiple Choice Type here to search
1 attempts left Check my work Select the single best answer. Which of the following does not represent a Lewis acid-base reaction? (a) H2O +H= H30+ (b) NH3 + BF3 = H3NBF3 (c) PF3 + F2 = PF5 (d) Al(OH)3 + OH = Al(OH)4 OO Type here to search
Question 1 (of 15) value 1.00 points 3 attempts left Check my work Be sure to answer all parts. Enter the your answers using scientific notation. Repo So Calculate the [H3O+] and [OH ] of a sodium hydroxide solution with a pH = 13.00. [H,0*]=C 10 (select) M [OH ]= * 10 (select) M Guided * Type here to search
Question 8 (of 9) value 1.00 points 3 attempts left Check my work List the three classes of RNA molecules. Select the single best answer. O transcript RNA, ribosomal RNA, and transpose RNA O transcript RNA, mitochondrial RNA, and transpose RNA Omessenger RNA, ribosomal RNA, and transfer RNA messenger RNA, mitochondrial RNA, and transfer RNA K Question 9 (of 9) value: 1.00 points 3 attempts left Check my work Which is more likely to be a silent mutation: a point...
value 1.00 points 1 attempts left Check my work Enter your answer in the provided box. A buffer solution is prepared in such a way that the concentration of propanoic acid is 1.92 x 10 Mand the concentration of sodium propanoate is 1.51 x 10° M. If the buffer equilibrium is described by CH3COOH(aq) + H20(1) = H2O*(aq) + CH3C00 (aq) Gul propanoic acid propanoate ion with K = 1.34 x 105 calculate the pH of the solution. pH =...
value: 1.00 points 5 attempts left Check my work Compute the volume by rounding all intermediate calculations to one decimal place. Use the value of a from your calculator or a = 3.1416. a. Right cone 7 cm 6 cm The volume is cm? b. Oblique rectangular prism T 6 cm 1 cm 7 cm The volume is cm. Type here to search
value: .0.25 points 3 attempts left Check my work A rocket can be powered by the reaction between dinitrogen tetroxide and hydrazine: Report pro Hint Solutio Guided Sol N204()+2 N2H4の→3N2(g) +4H2O(g) An engineer designed the rocket to hold 2.55 kg N,0, and excess gisg How much N2 would be produced according to the engineer's design? Enter your answer in scientific notation. select)g N2 O Type here to search
7. value 0.00 points 3 attempts left Check my work Calculate the number of mol corresponding to 19.0 g Be. Enter your answer in the provided box. mol Be value 1.00 points 3 attempts left Check my work Calculate the number of mol corresponding to 0.065 kg Si. Enter your answer in the provided box. mol Si 9. value 0.00 points 3 attempts left Check my work What is the average molar mass of the following elements? Be sure to...
Question 11 of 15) value 1.00 points 3 attempts left Check my work Enter your answer in the provided box. solution of NaOH. Calculate the pH of a 1.0 x 10M pH= Question 14 (of 15) value: 1.00 points 3 attempts left Check my work Enter your answer in the provided box. Calculate the pH of a solution with a H2O concentration of: 1.8 x 10-6 M
3 attempts left Check my work Select the single best answer. Which force opposes vaporization of CH3NH2? O ion-induced dipole forces O hydrogen bonding forces O ionic bonding forces O ion-dipole forces O dipole-dipole forces O dipole-dipole forces O dispersion forces
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