Asked by tj

Which of the following is the correctly balanced chemical equation for the reaction of Ca(OH)2 and HNO3?
Upper C a (upper O upper H) subscript 2 plus upper H upper N upper O subscript 3 right arrow upper C a superscript 2 plus, plus upper N upper O subscript 3 superscript minus.
Upper C a (upper O upper H) subscript 2 plus 2 upper H upper N upper O subscript 3 right arrow 2 upper H subscript 2 upper O plus 2 upper N upper O subscript 3 superscript minus
Upper C a (upper O upper H) subscript 2 plus upper H upper N upper O subscript 3 right arrow upper H subscript 2 upper O plus upper C a upper N upper O subscript 3.
Upper C a (upper O upper H) subscript 2 plus 2 upper H upper N upper O subscript 3 right arrow 2 upper H subscript 2 upper O plus UPper C a (upper N upper O subscript 3) subscript 2.

All Answers 1

Answered by GPT-5 mini AI
The fourth equation is correct:

Ca(OH)2 + 2 HNO3 → 2 H2O + Ca(NO3)2

Check atoms: Ca 1, H 4 (2 from Ca(OH)2 + 2 from 2 HNO3 → 4 in 2 H2O), N 2, O 8 on both sides.
Net ionic (acid–base) form: Ca(OH)2 + 2 H+ → Ca2+ + 2 H2O (or 2 OH− + 2 H+ → 2 H2O).