Calcium Sulphide is the name(word) of the substance.
It chemical formula is 'CaS'.
That is
one atom of calcium
one atom of sulphur.
NB Carefukl with the nameing oif sulphur compounds.
'Sulphate' = -SO4' (Four oxygens). CuSO4 ; Copper SULPHATE)
'Sulphite' = -SO3' (Three oxygen). (CuSO3 ; Copper SULPHITE)
'Sulphide' = -S' (No oxygens). (CuS ' Copper SULPHIDE).
Note the subtle change of one letter to indicate a different sulphur type compound.
When calcium sulphide reacts with hydrochloric acid, it forms calcium chloride and hydrogen sulphide gas. The balanced chemical equation for the reaction is CaS + 2HCl → CaCl2 + H2S. Hydrogen sulphide gas being released gives off a rotten egg smell.
The word equation for calcium reacting with oxygen is: calcium + oxygen → calcium oxide.
The word equation for the reaction between calcium and phosphorus is: calcium + phosphorus → calcium phosphide.
The word equation for calcium oxide is: calcium oxide + water → calcium hydroxide.
Calcium sulphide is a compund, it has the formula CaS, and is a white solid.
When calcium sulphide reacts with hydrochloric acid, it forms calcium chloride and hydrogen sulphide gas. The balanced chemical equation for the reaction is CaS + 2HCl → CaCl2 + H2S. Hydrogen sulphide gas being released gives off a rotten egg smell.
The word equation for the reaction between calcium and phosphorus is: calcium + phosphorus → calcium phosphide.
The word equation for calcium reacting with oxygen is: calcium + oxygen → calcium oxide.
The word equation for the reaction between calcium and fluorine is: calcium + fluorine → calcium fluoride.
The word equation for calcium oxide is: calcium oxide + water → calcium hydroxide.
Similar to Sodium and Water. Efferevescence and an alkali product . Ca(s) + 2H2O(l) = Ca(OH)2 (aq) + H2(g). NB Where sodium is a Group '1' metal , it has only ONE hydroxide attached. Calcium is a Group '2' meta; , so it has TWO hydroxides attached.
Calcium sulphide is a compund, it has the formula CaS, and is a white solid.
Calcium oxide and Water = Calcium hydroxide(Slaked lime/ lime water). . Here is the BALANCED reaction equation CaO(s)+ H2O(l) = Ca(OH)2(aq)
No. Calcium Sulphide is one counter example.No. Calcium Sulphide is one counter example.No. Calcium Sulphide is one counter example.No. Calcium Sulphide is one counter example.
Ca+O=CaO
The word equation for the reaction of calcium and hydrochloric acid is: calcium + hydrochloric acid → calcium chloride + hydrogen.
The word equation for the extraction of calcium from calcium oxide by electrolysis is: Calcium oxide (solid) -> Calcium (liquid) + Oxygen gas.