POTASSIUM SULFIDE is a reducing agent. The formula for potassium hydrogen sulfide is KHS. Its chemical formula is K 2 S. It contains potassium and sulfide ions. Potassium sulfide is the inorganic compound with the formula K 2 S.The colourless solid is rarely encountered, because it reacts readily with water, a reaction that affords potassium hydrosulfide (KSH) and potassium hydroxide (KOH). Net Ionic: No Reaction 9. A sulfide ion has a charge of 2-. Molar mass of K2S = 110.2616 g/mol. Another name for this inorganic compound is potassium hydrosulfide. K2S. Copy this to my account; E-mail to a friend ... Start over; Help; This activity includes every compound formula and name that can be formed from the list 44 Ions provided in Chemistry A at Pickerington High School Central. The name of this compound is potassium sulfide. ion. This formula indicates that this compound is made up of twice as many sodium ions as sulfide ions. An ionic formula, like \(\ce{NaCl}\), is an empirical formula. Sometimes it is not pure and it is yellow-brown. Molecular weight calculation: 39.0983*2 + 32.065 ›› Percent composition by element Most commonly, the term potassium sulfide refers loosely to this mixture, not the anhydrous solid. One of the most important things to remember about ionic compounds is that they must be electrically neutral.. Potassium sulfide is a chemical compound. ›› Potassium Sulfide molecular weight. What is the chemical formula for potassium sulfide? Name the following compound: MgO. Convert grams Potassium Sulfide to moles or moles Potassium Sulfide to grams. Potassium sulfide is a colorless solid when it is pure. polyatomic. This means that the overall positive charge of the cations must be balanced by the overall negative charge of the anions.. Molecular: cobalt(III) bromide + potassium sulfide Molecular: 2 CoBr3 (aq) + 3 K2S(aq) Co2S3 (s) + 6 KBr (aq) Total Ionic: 2 Co3+ (aq) + 6 Br¯ (aq) + 6 K+ (aq) + 3 S2-(aq) Co 2S3 (s) + 6 K + (aq) + 6 Br¯ (aq) Net Ionic: 2 Co3+ (aq) + 3 S2-(aq) Co 2S3 (s) 10. So readily oxidized as to be pyrophoric in air [Bretherick 1979 p. 120]. Magnesiumoxide. Ionic Compounds, Naming and Formula Writing. This formula merely indicates that sodium chloride is made of an equal number of sodium and chloride ions. Its molar mass is 72.17 grams per mole, and it is soluble in water. It is incompatible with chloroform and nitrogen oxide. Ions that are made of more than 1 atom. ... Chemical Formula: K2S4 (potassium polysulfide) K2S (potassium sulfide) Flash Point: data unavailable. The potassium is in its +1 oxidation state. Properties. Sodium sulfide, another ionic compound, has the formula \(\ce{Na_2S}\). Tools. an atom or group of atoms that has an electric charge. 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