ChemVantage.org

ChemVantage LogoWelcome to
ChemVantage - General Chemistry
An Open Education Resource
ChemVantage is a free resource for science education:
  • computer-graded quizzes
  • homework exercises
  • practice exams
View the ChemVantage video.

Please Sign In

ChemVantage uses third-party authentication by Google.
Click the Google icon below to sign in with your Google/GMail credentials.
If this is your first ChemVantage login, a free account will be created for you.

Google login


Try One Question

It takes about 29.47 days for the moon to orbit the earth with respect to the line between the earth and sun. What is this interval when expressed in seconds?
Enter the correct numerical value with the appropriate number of significant figures. Express scientific notation like 4.287E-15
s


© 2007-16 ChemVantage LLC. Creative Commons LicenseTerms and Conditions of UsePowered by Google App Engine