Q3. A bridge is built without expansion gaps. Explain what could happen to the bridge if the temperature became:

a) much hotter than the day it was built.
b) much colder than the day it was built.

Please explain

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).

all eukaryotic cell have mitochondria : )