Answer:
a.
ZnS(s) + O2(g) → ZnO(s) + SO2(g)
b.
HCl (aq) + Ba(OH)2(aq) → BaCl2(aq) + H2O
The word equation has been the representation of the reactants and product formed in the chemical reaction in the form of words.
The chemical reaction has been the representation of the chemical formula of the reactants and products in the chemical reaction. The chemical equation for given word reaction can be given as:
a. Solid zinc sulfide + oxygen gas [tex]\rightarrow[/tex] solid zinc oxide + sulfur dioxide gas.
[tex]\rm ZnS\;(s)\;+\;O_2\;(g)\;\rightarrow\;ZnO\; (s)\;+\;SO_2\;(g)[/tex]
The s and g has been the representation of the solid and gas state of the chemicals.
b. Aqueous hydrochloride acid + aqueous barium hydroxide → aqueous barium chloride + water
[tex]\rm HCl\;(aq)\;+\;Ba(OH)_2\;(aq)\;\rightarrow\;BaCl_2\;(aq)\;+\;H_2O[/tex]
The aq has been the representation of the aqueous state of the chemical.
For more information about chemical equation, refer to the link:
https://brainly.com/question/20492533
