Answer:

Explanation:
A reaction is spontaneous at all temperatures by the following combinations:
=> A negative enthalpy change (
)
=> A positive entropy change (
)
See the attached file for more better understanding!
Answer: Volume of CO2 is 89127 mL
Explanation: The reaction that takes place is: C2H2 + O2 --> CO2 + H2O
The amount of C2H2 that react allow us to predict the amount of CO2 that will be obtained

26g/1mol is molar mass of C2H2 and 2/4 is the molar relation between CO2 and C2H2 in this reaction. Canceling units, at the end mol of CO2 are obtained
Now with the moles of CO2 and the ideal gases equation is possible to calculate the volumen occupied by the gas.
PV = RnT where P: pressure, V: volume, R: ideal gas constant, n: moles and T: temperature expressed in K (add 273,15 to °C temperature: 37,4°C + 273,15 = 310,55K)
V= RnT/P

To express volume in mL multiply the L result by 1000 which equals 89127 mL
Physical Properties of Metals: Malleability and Ductility. The delocalised<span> electrons in the 'sea' of electrons in the metallic bond, enable the metal atoms to roll over each other when a stress is applied</span>
The answer should be d but it could be c
The ion is positively charged because it has fewer electrons than the atom.