Which statement is true regarding a hydrogen bond? A- it is weaker than dipole interaction forces. B-it is weaker than London dispersion forces. C-it is strong because of the lack of inner electron shells in a hydrogen atom. D-it occurs when a hydrogen atom bonds with electropositive atoms . E- it occurs due to a small electronegativity difference between poles of the molecule and large sizes of the hydrogen.

THIS USER ASKED 👇

Which statement is true regarding a hydrogen bond?

A- it is weaker than dipole interaction forces.
B-it is weaker than London dispersion forces.
C-it is strong because of the lack of inner electron shells in a hydrogen atom.
D-it occurs when a hydrogen atom bonds with electropositive atoms .
E- it occurs due to a small electronegativity difference between poles of the molecule and large sizes of the hydrogen.

THIS IS THE BEST ANSWER 👇

A. Decreasing the temperature reduces the kinetic energy of the reactants, and the reaction slows down.

C. Reactors must collide, with correct orientation, with an energy greater than or equal to the activation energy for a reaction to take place.

D. The number of reactants increases the number of collisions, and the reaction goes faster.

A. The collision energy between atoms or molecules must be greater than or equal to the activation energy (Ea) to break bonds.

Explanation:

Decreasing the temperature reduces the kinetic energy of the reactants, so fewer molecules have enough kinetic energy to pass the Eₐ barrier, and the reaction slows down.

Reactors must collide, with correct orientation, with an energy greater than or equal to Eₐ for a reaction to take place.

The concentration of reagents increases the frequency of collisions, thus increasing the number of successful collisions.

Collision energy between atoms or molecules must be greater than or equal to Eₐ to break bonds.

B is wrong. If Eₐ is low, more molecules can cross the energy barrier, and the reaction rate is fast.

E is wrong. If the energy of the products is higher than the energy of the reactants, the products must have received energy. The reaction is endothermic.

G is wrong. Eₐ is the energy difference between the energy of the transition state and the energy of the reactants.