You don't have to send them right away. You have an account on College Board, right? , Your scores will still be there and saved on your College Board account in senior year (that's why you really shouldn't send anything to colleges right now). . Focus on the tests right now--the college choices can wait! Just take the Chem Subject Test and send the result through College Board in your senior year to your chosen colleges.
Good luck on the test, btw!