The above question asks that a chemical equation be created that shows the action of hydrogen chloride and sodium sulfide to produce hydrogen sulfide with sodium chloride. This equation is formed as follows: Na2S + 2HCl → 2NaCl + H2S
We can see that to form a chemical equation the reagents must be placed before the arrow, to show that they will be the elements that must react and form the products. After the arrow are placed the products, the results of the reaction. It is also important to realize that an equation must be balanced, that is, the same number of atoms of an element present in the reagent, must be present in the product as well.
