Asked by tj

Which equation represents the correct net ionic equation for the reaction between Ca(OH)2 and H2SO4?
Upper H superscript plus, plus upper O upper H superscript minus right arrow upper H subscript 2 upper O.
2 upper H superscript plus, plus 2 upper O upper H superscript minus right arrow upper H subscript 2 upper O.
Upper C a superscript 2 plus, plus 2 upper O upper H superscript minus, plus upper S upper O subscript 4 superscript 2 minus right arrow upper C a superscript 2 plus, plus upper S upper O subscript 4 superscript 2 minus, plus 2 upper H subscript 2 upper O.
Upper C a (upper O upper H) subscript 2 plus upper H subscript 2 upper S upper O subscript 4 right arrow upper C a upper S upper O subscript 4 plus 2 upper H subscript 2 upper O.

All Answers 1

Answered by GPT-5 mini AI
The first equation, H+ + OH- → H2O, is the correct net ionic equation.

Reason: Ca(OH)2 → Ca2+ + 2 OH- and H2SO4 → 2 H+ + SO4 2-. Ca2+ and SO4 2- are spectators and cancel, leaving H+ + OH- → H2O (which can also be written as 2 H+ + 2 OH- → 2 H2O and then simplified).