Ask a few questions about part-time translation in minor languages

1. Basically not needed.

2. Yes.

3. Bank card.

In addition: You should find a translation company that matches your major. Translators like you who are skilled and knowledgeable in language are very popular, because students who major in language are translating some highly professional texts. Writing a text is thankless, and I think your chemistry major must also have some knowledge of petroleum and petrochemicals, etc. You must emphasize your areas of expertise in addition to language skills.

If you want, you can take a certificate. It is a certificate. Although it is not needed by the company, it may be useful in the future.