Ireally need with this chem question. can anybody answer it with an explanation for the answer? .
which is the correct net ionic equation for the following reaction:
2hi (aq) + ca (oh)2 (aq) arrow cai2 (aq) + h2o (l)?
a.) h+ (aq) + ca+2 (aq) + 2 i− (aq) arrow cai2 (aq)
b.)ca+2 (aq) + 2 oh− (aq) to ca(oh)2 (aq)
c.)h+ (aq) + oh− (aq) to h2o (l)
d.)2hi (aq) + ca (oh)2 (aq) to cai2 (aq) + h2o (l)

Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges