Answer Happy

i would really appreciate if you dont mind answering these chem questions
The enthalpy changes for three compounds are shown below: N2c + 5/2 020) + 15.0 kJ N2Osig) H26) + 1/2O2(8) H200 + 285.8 kJ + 1/2 N21 + 3/2 02011 HNO30 + 174.1k 1/2 H2 - Net: N2O + H2O + 2HNO3 The standard enthalpy change for the net reaction is: ab.c kl • Input the value for ab.c in the blank below. Include a positive or negative sign in your answer: eg -16,8 or +16.8 • Do not include units Is the reaction endothermic or exothermic? • write exothermic or endothermic in the blank A/ Question 12 (1 point) Agsu + 1/2 Cl2@) -- Aglis) AH = -127.0) 1/2 H2 + 1/2 Claw - HCLS AH - .92.3) H2 + 1/2 0219) + H2001 AH - 285.9 A820 + 2HCIO + 2 AgCl + H2O AH-324.78 Based on the information above the molar enthalpy change of formation of A820 is ab.c kJ/mol • Input the value for ab.c in the blank below. Include a positive or negative sign in your answer: eg -12.4 or +12.4 Do not include units is the reaction endothermic or exothermic? write exothermic or endothermic in the blank
Question 13 (1 point) The enthalpy changes for two compounds shown below. - NO218) AH = -56 kJ NO(g) + % O218) N204(g) → 2 NO2(g) AH- + 58 kJ Net: 2 NOB) + O2(8) N20418) The standard enthalpy change for the net reaction is: abc kJ • Input the value for abc in the blank below. Include a positive or negative sign in your answer: eg -121 or +121 • Do not include units A Is the reaction endothermic or exothermic? • write exothermic or endothermic in the blank A/ Question 14 (1 point) Using a molar heat of combustion of hexane (CH74) -4163 kJ/mol, the mass of hexane required to increase the temperature of 1.76 L of water from 21.0°C to 70.0°C is a.bc g. Put your answer for a.bc in the blank Notes: . do not include units Your Answer: Answer
Question 15 (1 point) The molar heat of combustion of pentane (CH) to form carbon dioxide and water liquidis - 3509 kJ/mol. 86,74 g of pentane is burned to heat the 2.00 L of water at 20.0°C, the highest theoretical possible temperature of the water is ab.cc Put your answer for ab.c in the blank. Notes: do not include units Your Answer: Answer Question 16 (1 point) Hydrogen gas and zinc chloride are produced when zinc reacts with hydrochloric acid. For each mole of zinc that reacts, 80.7 kJ of energy is liberated into the surrounding solution. The minimum possible mass of zinc that could be dissolved in 200 ml of hydrochloric acid that would cause the acid temperature to rise by 2.01°C is a.beg Put your answer for a.bc in the blank Notes: do not include units Your Answer Answer Question 17 (1 point) The calculated enthalpy of formation for the process of cellular respiration is abcd.e kl. Assume the state of the water that is produced in the reaction is liquid. CH 206 + 6 02 - 6 CO + 6 H200 • Input the value of abcd.e in the blank . If your answer is negative, include a negative sign . If you answer is positive, loclude a positive sien • Use values from the chemistry 30 data booklet in your calculation pages 4 & 5) • Include the decimal . Do not include units Is this an exothermic or endothermic reaction? (put either endothermic or exothermic in the blank AV