An unknown substance has a volume of 15. 8 cm 3 and a mass of 2 grams. Use the chart above to identify the unknown substance. What is the substance?
a.
iron
b.
silver
c.
water
d.
gold

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).

wher is the rest of the question