Answer:
It does not have a regular composition.
Explanation:
Answer:
b) Both p orbitals are perpendicular to the F−Be−F bond axes.
Explanation:
Be has 2 electrons in its valence shell, subshell s is fulfilled, so it has no unpaired electrons in its ground state to make bonds with F. So, it can promote the electrons to the 2p orbital and will having sp hybridization.
The bond between the orbitals sp and the p orbital of F are in opposite directions but the same ax. The two bonds are equivalent, and the molecule had a linear geometry. The two unhybridized p orbitals on Be are vacant, and so they are perpendicular to the F-Be-F bond axes.
Answer: 
Explanation:
To calculate the moles, we use the equation:
Given mass of theobromine 
= 0.064 g
Molar mass of theobromine 
Answer:
They refer to energy that moves. Kinetic energy is energy that is currently moving. Potential refers to energy that has yet to move, or simply energy in wait
Explanation:
Answer:
3211.12 K
Explanation:
The expression for the standard change in free energy is:
Where,
is the change in the Gibbs free energy.
T is the absolute temperature. (T in kelvins)
is the enthalpy change of the reaction.
is the change in entropy.
For reaction to be spontaneous, 
Given, 
So,
Thus, applying values as:-
So, T = 3484.27 K
The conversion of T( °C) to T(K) is shown below:
T( °C) = T(K) - 273.15
So,
T = (3484.27 - 273.15) K = 3211.12 K
<u>The temperature below which the reaction is spontaneous is:- 3211.12 K </u>
