There are three reasons you might see a blank screen when you log into Chem101. One is that your instructor has not published any assignments yet, another is that they have assigned Homework or Practice which show up in other tabs, or finally you may be looking at another course.
1. To check that you are seeing your assignments correctly, first log in to Chem101 and hit launch Chem101 web if you are using a Firefox or Chrome browser, or sign in using the Chem101 iOS or Android app.
2. If your screen is blank, double-check the other tabs to see if there are any published assignments there. You can try Homework, Quiz or Practice.
3. Finally, you can check that you are looking at the right course by clicking the course drop-down and selecting another course if there is one.
This should show you any content your instructor has published. Check-in with your instructor if you still can't see anything, or contact support here.