YOU SAID:
The cat ate a rat which dissolved in its stomach acid
INTO JAPANESE
猫は胃酸に溶けたネズミを食べました
BACK INTO ENGLISH
The cat ate a mouse dissolved in stomach acid
INTO JAPANESE
猫は胃酸に溶かしたネズミを食べました
BACK INTO ENGLISH
The cat ate a mouse dissolved in stomach acid
That didn't even make that much sense in English.