Me. i am a little stuck on what to do. it's been a few months since i have balanced equations, and i know that is one of the steps. i'm very confused on what to do, will someone me?

in the following balanced neutralization reaction equation, how many moles of ca(oh)2 are required to completely neutralize 1.2 moles of hi? 2hi + ca(oh)2 → cai2 + 2h2o a) 1.2 moles b) 0.6 moles c) 2.4 moles d) 1.0 mol

warning: plato student