I’m taking Sat II Chem in June but I’m nervous I won’t do so well. I can take it again in October just in case. Will I have to send in both scores?
It depends on the college; some require all scores and others let you choose. You need to check with each potential college.
Check with the schools, but most likely you can pick the scores to be sent. Even Stanford that wants all score still allow score choice for SAT2.