Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
구핵원자는 화학 반응에서 전자를 끌어당기는 역할을 합니다.guhaekwonjaneun hwahak ban-eungeseo jeonjaleul kkeur-eodangineun yeogaleul hamnida.A nucleophile plays a role in attracting electrons in a chemical reaction.