Which statement about hydrogen bonds is true?
a. they are the only force that allows a gecko to climb up glass.
b. they are the weakest of the intermolecular forces.
c. they are much stronger than intramolecular forces.
d. they water striders walk on water by creating surface tension.

D: They help water striders walk on water by creating surface tension.

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).