Scripture quoting will not get you far if you are unprepared to discuss context, history and reason. It’s hard enough to be prepared in those aspects and still have a reasonably mature and charitable discussion with an emotional person, let alone an anti-Catholic.
I have anti-Catholic Southern Baptists in my family as well, and although they are not emotionally aggressive (anymore) about condemning Catholicism, they are biased toward their own interpretation of scripture, which is really an absorbed acceptance of dozens of various “teachers” of scripture over the course of several decades. So, scripture verses without the primacy of context, history and reason are futile discussions, in my experience.
My advice: learn your faith, learn it well. Read your Catechism, take a good Catholic Bible study course (like The Great Adventure), watch EWTN, read any of
these books, explore Catholic Answers and other abundant Catholic sites, ask questions - lots of them.
Do that for about a year or so, and leave your dear mother alone. In the meantime, continue to pray, for yourself and for her, for guidance, wisdom, strength, and an increase in faith and love.
Then, when you feel ready, handle her objections one at a time, using all aspects of your learned faith…scripture, tradition, history, reason, context…and slowly begin to unravel her arguments one strand at a time. You will find taking the time off to first learn your faith well will give you a much clearer road map and strategy for conversing with your mom, and understanding what exactly it is she objects to.
Of course, if you don’t like any of this advice, and just want scripture stuff now, then
go here.