The answer your looking for is a)
-please give me brainliest answer
Carbon:
1s is filled. 2s is filled. 2p is shown to contain two electrons in one orbital and no electrons in the other two orbitals.
<span>Enthalpy
change is the total heat that is absorbed or evolved in a certain reaction that
is being carried in a constant pressure system. It can be calculated by the
product of the specific heat of the substance and the difference of the final
temperature and the initial temperature. For this case, the enthalpy of combustion is given, so we simply multiply the amount of octane present to the enthalpy given to determine the total heat that is released.
Heat = 75 g ( 1 mol / 114.23 g ) (- 5500 kJ / mol ) = - 3611.14 kJ
The negative sign in the calculated value represents that this heat is being released in the process.</span>
Answer: The energy of the infrared radiation is 
Explanation:
The relationship between wavelength and energy of the wave follows the equation:
E= energy
= wavelength of the wave =
h = Planck's constant = 
c = speed of light = 
Thus energy of the infrared radiation is
The density of mercury is <span>5.43 g/cm³.</span>
