* ammonium sulphide: (NH4)2S ammonium sulphite: (NH4)2SO3
The reaction between dilute nitric acid and sodium sulfide will produce hydrogen sulfide gas, sodium nitrate, and water. The balanced chemical equation for this reaction is 2HNO3 + Na2S → 2NaNO3 + H2S.
A sufide is an anion form of the element sulfur. It can form compounds if it combines with other elements. Sulfide on it's own is not a compound, you need a prefix to that like Hydrogen Sulphide. Do not get this mixed up with a sulfate; you can get copper sulphate but not copper sulfide.
Those ions areall anions,negatively charged (mainly) -1, -2 or -3,consisting of one nonmetal element (mainly group 17, 16 or 15 respectively) andnot containg oxygen.Examples:17: F- , Cl- , Br- , I- (fluoride, chloride, bromide, iodide)16: O2-(oxide), S2-(sulfide)15: N3- (nitride), P3- (phosphide)
A Sulfide ion has a full complement of 8 valence electrons. Sulfur is element 16. It has 6 valence electrons in its outer energy level, however, sufide is S2- so it has gained 2 electrons to fill its outer energy level.
Calcium sulfide (CaS) has two atoms.
the egyptians used kohl which is galena mixed with soot. Galena is lead sufide. They also used malachite which is a copper ore, a carbonate mineral (it has a vibrant green colour). Malachite was imported from the sinai desert.
The reaction between dilute nitric acid and sodium sulfide will produce hydrogen sulfide gas, sodium nitrate, and water. The balanced chemical equation for this reaction is 2HNO3 + Na2S → 2NaNO3 + H2S.
Two potassium ions are needed to balance the charge of one sulfide ion. Potassium has a +1 charge and sulfide has a -2 charge, so two potassium ions with a +1 charge each are required to balance the -2 charge of the sulfide ion.
A sufide is an anion form of the element sulfur. It can form compounds if it combines with other elements. Sulfide on it's own is not a compound, you need a prefix to that like Hydrogen Sulphide. Do not get this mixed up with a sulfate; you can get copper sulphate but not copper sulfide.
sodium must lose 1 electron, helium is a noble gas it is in group 8 check your periodic table, sufide ion must gain 2 electrons
Those ions areall anions,negatively charged (mainly) -1, -2 or -3,consisting of one nonmetal element (mainly group 17, 16 or 15 respectively) andnot containg oxygen.Examples:17: F- , Cl- , Br- , I- (fluoride, chloride, bromide, iodide)16: O2-(oxide), S2-(sulfide)15: N3- (nitride), P3- (phosphide)
A Sulfide ion has a full complement of 8 valence electrons. Sulfur is element 16. It has 6 valence electrons in its outer energy level, however, sufide is S2- so it has gained 2 electrons to fill its outer energy level.