This is the net ionic equation for the formation of calcium hydroxide, Ca(OH)2 precipitate from soluble calcium ions and soluble hydroxide ions.
The balanced equation is Ca(OH)2 + H2SO4 → CaSO4 + 2H2O.
If you mean Ca(OH)2(s) --> Ca2+(aq) + 2OH-(aq) this is the equation for the dissolving of calcium hydroxide in water.
A Double displacement reaction or Neutralization reaction
this is an exotermic reaction
The reaction between calcium ions (Ca²⁺) and hydroxide ions (OH⁻) to form solid calcium hydroxide (Ca(OH)₂) indicates a precipitation reaction, where a soluble ionic compound forms an insoluble solid. The enthalpy change (ΔH) of -16.71 kJ suggests that the reaction is exothermic, meaning it releases heat to the surroundings as it proceeds. This indicates a favorable reaction that results in the formation of a stable solid from its aqueous ions.
The reaction shows calcium ions (Ca2+) reacting with hydroxide ions (OH-) to form solid calcium hydroxide (Ca(OH)2) and release heat of 16.71 kJ. This reaction is exothermic, as indicated by the negative enthalpy change.
This reaction is called photosynthesis.
A and B
This reaction is called hydrolysis.
A combustion reaction
It's a chemical reaction.
No reaction