Question

Write out the following statements in balanced chemical reactions. Specify states of matter for each substance. Watch out for elements that exist as diatomic molecules! a) Sodium reacts with sulfur to form sodium sulfide. (The most common form of sulfur is S8(s) so that is what is expected to be used here).

Answer 1

Answer : The balanced chemical reaction will be:

$16Na(s)+S_8(s)\rightarrow 8Na_2S(s)$

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

As per given statement, the sodium reacts with sulfur to form sodium sulfide as a product.

The balanced chemical reaction will be:

$16Na(s)+S_8(s)\rightarrow 8Na_2S(s)$

By the stoichiometry we can say that, 16 moles of Na react with 1 mole of $S_8$ to give 8 moles of $Na_2S$.