Question 15 4 pts Choose the correct chemical equation that represents the heat of formation of...
both please
What is the chemical equation corresponding to the heat of formation (AH, (C2H6 (9)) of ethane(C2H6(g))? 2C(s) + 3H2(g) - C2Holg) CzHole) +2C(s) + 3H2(8) 2C2H6(g) +702(g) + 4CO2(g) + 6H20(1) 2C(s) + 6H(g) —C2Hole) Question 9 1 pts Write a balanced reaction for which the following rate relationships are true. Rate - D - 00:0) = + 41231 = + 2010.) N2+O2 ® N20 N20 ® N2 + 202 N20 ® Nz+202 2 N2 + O2 ®...
(a) Write the balanced chemical equation that represents the standard heat of formation of UOz(s) at 298 K. Use the pull-down boxes to specify states. Write fractions with a slash, such as 1/2 for one half. If a box is not needed leave it blank. (b) The standard enthalply change for the following reaction is -2.44x10kJ at 298 K 2 Ba(s) + 2 C(s,graphite) + 3 0,(g) 2 BaCO3(s) What is the standard heat of formation of BaCO,(s)? kJ/mol Check...
The reaction that represents the standard enthalpy of formation for benzene (C6H6) is: O CoH6() +6 C(graphite) + 3 H2(g) O 6 C(graphite) + 6 H(g) → C6H6(l) O 6 C(diamond) + 3 H2(g) - C6H6(1) O C6H6(0) + 15/2O2(g) →6 CO2(g) + 3 H2O(g) O 6 C(graphite) + 3 H2(g) → CoH60)
(a) Write the balanced chemical equation that represents the standard heat of formation of Agl(s) at 298 K. Use the pull-down boxes to specify states. Write fractions with a slash, such as 1/2 for one half. If a box is not needed leave it blank. (b) The standard enthalpy change for the following reaction is 359 kJ at 298 K. PbCl2(s)— Pb(s) + Cl2(g) What is the standard heat of formation of PbCl2(s)? kJ/mol
Question 3 1 pts Given the balanced chemical equation, 2 H2O(l) - 2H2 (8) + O2(8) AHpx - +572 kJ Determine the heat associated with the reaction (Grxn, in kJ) when 4.85 grams of H2(g) is produced. O-475 kJ +688 kJ +1.20 kJ O-688 kJ +475 kJ
Question 10 10 pts Choose the correct, balanced chemical equation for the following neutralization reaction: nitric acid reacts with aqueous barium hydroxide to form aqueous barium nitrate and water HNO3 + BaOH - BaNO3 + H2O 2 HNO3(aq) + Ba(OH)2(aq) - Ba(NO3)2(aq) + 2 H20(1) HNO3(aq) + Ba(OH)2(aq) + Ba(NO3)2(aq) + H2O(1)
Which of the processes represented by the following chemical equations are exothermic?Choose one or more:A. $$heat+CaO(s)+3C(s)→CaC2(s)+CO(g)B. $$CH4(g)+2O2(g)→CO2(g)+2H2O(g)+heatC. $$CH3OH(g)+32O2(g)→CO2(g)+2H2O(g) ΔH=−676kJ/molD. $$2H2O(g)→2H2(g)+O2(g) ΔH=+483.6kJ/molE. $$I2(s)→I2(g)F. $$H2O(g)→H2O(l)
10 pts Question 5 Choose the correct, balanced chemical equation for the following combination reaction: aluminum metal is heated with sulfur powder to form solid aluminum sulfide Al(s) + S(s)heatrxn AIS(s) OAl(s) S(s)heatrxn Al2S3(s) O 2 Al(s)+3 S(s)heatrxn Al2S3(s)
e In Canvas D Question 3 2 pts Complete combustion of 1 mole of acetone (C3H&O) liberates 1790 kJ. Which of the following equations (with their correct AH° values) would not need to be used in any form to determine the enthalpy of formation of acetone? O C(graphite) + O2(g) CO2(8) ○ 3CO2(g) + 3H20(I) → 402(g) + C3H6O(1) O C(graphite) + 1/202(8) CO(g) ○ 2H2(g) + O2(g)-→ 2H2O(l) Next 4 Previous
Question 6 1 pts Which of the following reactions is a standard formation reaction (i.e. АHræn = AH) at T = 298 K? O 2 Fe (s) + 1.5 O2() → Fe2O3(s) O N2(1) + 2 O2(1) ► N204(1) O CO(g) + 2H2(g) + CH3OH(1) O C(s, graphite) + H2(g) + O2(g) → C6H1206(s) O Cl2(g) + H2(g) →2 HCl(g) Question 4 1 pts A sample of 1.71 moles of a substance was burned in a constant pressure calorimeter. The...