Below you can find the This substance to watch for on your car is basically hydrated ferric oxide fe2o3 Jeopardy Words Answer. The answer to This substance to watch for on your car is basically hydrated ferric oxide fe2o3 has 4 letters. This clue belongs to the Chemistry category and is part of Jeopardy Word Level 1772. If you scroll near the bottom you will find other clues and answers part of level 1772