<human>: So today was our chemistry final, which is a lab assessment worth 4% of our final grade. I'd calculated that if I got a 100% on the final, I'd slide through with just barely an A for the year, so I was ready to do anything for that 100. Instead of a normal test, our AP Chem teacher gave us a chemistry puzzle where she prepared 9 clear solutions for each student with a word bank and we needed to use reactions to figure out which compound was in each tube. By the end of the allotted time I had matched 7 of the 9 test tubes but I was freaking out because I couldn't figure out which of the last two was NaOH and which was NaBr. When our teacher shouted 3 minutes I decided 'fuck it' and dipped my finger into one of those two tubes and tasted it because I knew NaOH would burn a little bit. The first tube burned my tongue like all hell so I wrote that down as NaOH and rushed over to turn in my sheet then I ran to the sink and rinsed my mouth until it stopped burning. I was right so I got a 100 on the final and an A for the year, but now I can't really taste and my tongue feels disgusting.

Can you condense the text into three sentences or less?
<bot>: I tasted sodium hydroxide so I could get an A in AP Chem, but now I can't taste and my tongue feels scarred.