Many people, including my past self, say the word grace without knowing exactly what it is or what it does. We sometimes think of it as a kind of nebulous thing that God gives us when we’re forgiven, but we cannot seem to put our fingers on a precise definition of it. So, this article| Catholic Stand - Living the Truth the Church Teaches
Some Protestant churches, though not most, teach that baptism is valid only when someone submerges ("dunks") a candidate in water. Consequently, some Protestant| Catholicism Explained