Write a script using Google Apps Script (javascript) -- 2

My small project is to create a Google Apps Script that will 1. when a new entry is made onto the spreadsheet named 'Part_Alert(responses)' the script will run. The script will take the information from the new entry on the spreadsheet and generate a mail merge email. The list of emails for the mailMerge will be on a second tab named 'testList' 2. the script will also take the new entry data and generate a tweet on my twitter account.