Plants grow in a soil with a typical pH value between 5.5-8. Levels below or above that do not allow plants to thrive. What can cause a decrease in the pH level of soil?
A)
no-till farming
B)
accumulation of heavy metals
the growth of fungi and bacteria
D)
Applying phosphorus fertilizer in small amounted

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).

yes the answer is total mass in unchanged   : )