iron copper Save Question 12 (1 point) which response includes all of the follow

Question

iron copper Save Question 12 (1 point) which response includes all of the following substances that have ,,-0, and no other substances? ) HCI(g II) Nals) Ill) F2l8) IV) HCl(aq) Il and Ill I, II, III, and IV I and IV I and II Save Question 13 (1 point) A 4.400 g sample of urea, (NH2)2CO, is dissolved in 238 g of water in a coffee-cup calorimeter at 28.8 °C. The reaction temperature of the solution after the reaction takes place? Assume the specific heat capacity absorbs 33.2 kJ of heat per mole of urea. What is the final

Explanation / Answer

Answer 12) The correct answer is II and III.

As enthalpy of formation in elemental state is zero.

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