Aqueous solutions of a compound did not form precipitates with cl-, br-, i-, so42-, co32-, po43-, oh-, or s2-. this highly water-soluble compound produced the foul-smelling gas h2s when the solution was acidified. this compound is

Answer;

(NH4)2S

Explanation;Ammonium sulphide, (NH4)2S, is an unstable compound, and in aqueous solution it exists as ammonia (NH4OH) and ammonium hydrosulphide, NH4HS.it is a highly water-soluble compound and produces the foul-smelling gas h2s when the solution is acidified.The anions; cl-, br-, i-, so42-, co32-, po43-, oh-, or s2- are not precipitated by (NH4)2S, but are precipitated by salts such as barium and silver nitrate.

If the water vapor content stays the same and the temperature drops, then the relative humidity increases. its vise versa.if the water vapor content stats the same and the temperature rises, the relative humidity decreases. so, yes, i'd say that temperature and humidity have a strong relationship.

Cr(oh)3 -> cr(3+) + 3oh-