Because ALL sodium salts are soluble: carbonates and hydroxide and natural soap: "fatty acid carboxylates", contrarely to Ca- and Mg salts
Calcium sulphate + Sodium hydroxide > Sodium sulphate + Calcium hydroxide
Sodium hydrocide is not an existing compound, so the answer is NO.
Calcium sulphate is a compound. A compound is created when two or more elements are combined such as calcium and sulphide or sodium and chloride in the case of table salt.
Sodium hydroxide Sodium chloride Calcium nitrate Calcium chloride
the pH of sodium sulphate is 6 - 8
Calcium sulphate + Sodium hydroxide > Sodium sulphate + Calcium hydroxide
Sodium hydrocide is not an existing compound, so the answer is NO.
Calcium sulphate is a compound. A compound is created when two or more elements are combined such as calcium and sulphide or sodium and chloride in the case of table salt.
No. Sodium sulphate + calcium = sodium chloride is wrong you can tell this by writing out a chemical equation NaSO3 + Ca = NaCl <-- This as you can see is wrong, in a chemical equation both sides must have the elements on each side, no new elements can be formed. I'm not 100% whether SO3 is a sulphate or a sulphite btw*
Mix dilute hydrochloric acid with calcium carbonate to obtain a calcium chloride solution; then add sodium sulphate solution to the calcium chloride solution to obtain calcium sulphate precipitate.
It is not correct: calcium chloride is more efficient (but also more expensive); the cause is that the CaCl2 enthalpy of dissolution is higher.
Sodium + Sulphate + Water = Sodium Sulphate + Water
Sodium hydroxide Sodium chloride Calcium nitrate Calcium chloride
Anhydrous sodium sulphate is Na2SO4
the pH of sodium sulphate is 6 - 8
No, because it's not the chloride part that's responsible for the hardness, it's the calcium. Sodium chloride is actually used in water softeners, so it's not a great choice if you're looking to increase the hardness. You could use calcium hydroxide, though this will also make the pool more alkaline which may not be ideal.
NaCl, sodium chloride KBr, potassium bromide MgSO4, magnesium sulphate CaCO3, calcium carbonate CaCl2, calcium chloride NaNO2, sodium nitrite NaNO3, sodium nitrate KI, potassium iodide