Question

Which equation represents the correct net ionic equation for the reaction between Ca(OH)2 and H2SO4?

Answer 1

The net ionic equation for the reaction between calcium hydroxide and sulfuric acid is 2OH-(aq) + H2SO4(aq) → 2H2O(l) + SO42-(aq). This equation represents the neutralization of the OH- ions by sulfuric acid, excluding the spectator ions.

Step-by-step explanation:

The correct net ionic equation for the reaction between calcium hydroxide (Ca(OH)2) and sulfuric acid (H2SO4) is given by: 2OH-(aq) + H2SO4(aq) → 2H2O(l) + SO42-(aq)

First, we need to write a balanced chemical equation for the reaction between calcium hydroxide and sulfuric acid:
Ca(OH)2(s) + H2SO4(aq) → CaSO4(s) + 2H2O(l)

The calcium sulfate (CaSO4) and water (H2O) are the products formed in the reaction, with calcium sulfate being the salt. To obtain the net ionic equation, we take into account that calcium sulfate is sparingly soluble and will precipitate. Calcium hydroxide dissociates completely in water to Ca2+ and OH-, and sulfuric acid dissociates to H+ and SO42-. The spectator ions Ca2+ and SO42- are removed, leaving us with the net ionic equation of the hydroxide ions neutralizing the acid.

Answer 2

Answer : The chemical reaction between
`Ca(OH_(2))` and
`H_(2)SO_(4)` is is given below.

`Ca(OH_(2))` +
`H_(2)SO_(4)` →
`CaSO_(4)` +
`H_(2)O`

When calcium hydroxide reacts with sulfuric acid it undergoes neutralization reaction. Which give salt of calcium sulfate and water as their products.

The complete ionic reaction will be like this

`Ca^(2+)+ 2OH^(-) + 2H^(+) + SO_(4)^(2-) ----> CaSO_(4)_(s) + 2 H_(2)O_((l))`

And the net ionic equation will be as

`2OH^(-) + 2H^(+) ---> 2H_(2)O`