If a question displays 
after you have answered it incorrectly, click for an explanation of the correct answer.
- Drag and drop
Click and drag a graphic to the correct location in a diagram.
- Fill in the blank
Type the correct answer in an empty field. If available, use the chemistry formula tool to include special characters in your answer.
- Multiple choice
Select the correct answer.
- Matching
Connect related pieces of information to each other. Click an item from each column to create a line between them.
- True/False
Decide whether a statement is true or false. Select the correct answer.
- Yes/No
Answer a question with Yes or No. Select the correct answer.
- ChemDoodle Sketcher
Draw a model of a molecule using the ChemDoodle Sketcher tool.
- Identification
Select appropriate elements of a diagram.
- Tutors, simulations, and exercises
Complete all three parts of the question: read the preparatory information, engage with the interactive simulation, and answer the related questions.