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How many atoms are in calcium sufide?
Calcium sulfide (CaS) has two atoms.
Is sulfide an element or a compound?
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.
What did the Egyptians use for makeup?
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.
What is the reaction of dilute nitric acid and sodium sufide?
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.
How many electrons does sulfide ion have?
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.
Difference between ammonium sufide and sulfite?
Ammonium sulfide is a compound with the formula (NH4)2S, formed from ammonia and hydrogen sulfide, and is used in various applications such as in analytical chemistry and as a reducing agent. On the other hand, sulfite refers to the sulfite ion, SO3^2-, or compounds containing this ion, and is commonly used as a food preservative. Sulfite can also be involved in various chemical reactions as a reducing or oxidizing agent.
How many electrons must be gained or lost for each of the following to achieve a noble gas electron configuration Lithium atom Bromine atom Barium ion Helium atom?
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
What type of ions have name ending in -ide?
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)
