How much chalcopyrite had to be mined to produce 100 pennies if reaction 1 had a percent yield of 83.00 % and all other reaction steps had yield of 100%?

"the periodic table is arranged in order of atomic number."

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).

since electrons are negative the answer is neagtaive