What is mortal sin?

Would you please list & define each of the 3 conditions that make a sin mortal. Thank you.

Dear b,

This is how the Baltimore Catechsim explains mortal sin. Scroll down and you will find the three conditions.

catholic.net/teaching_the_faith/template_article.phtml?channel_id=14&article_id=832

Fr. Vincent Serpa, O.P.

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