The sigma bonds are formed when orbitals overlap side by side and is related to covalent bond In ethylene the number of sigma bond are 5.
Reason, carbon has four carbon -hydrogen bond which form four sigma bond. The other sigma bond is between carbon=carbon bond thus ethylene has 5 sigma bond
(SO4)2 The SO4 = 4 oxygen and having a 2 like that (SO4)2 makes it have 2 S, and 8 O’s
Answer:
Temperature
Explanation:
Kinetic energy of gass molecules is directly propotional to the temperature.
Answer:
The amount of heat is 84.4894kJ
Explanation:
Given data:
mass of octane=148g
The moles of octane is:

The melting point is=-56.82°C
ΔHfus=20.73kJ/mol
The heat of fusion is:

The heat to bring the octane to a temperature of 117.8°C is:

The total heat in the process is:
Qtotal=Qfus+Q₂=26.8578+57.6316=84.4894kJ