Questions: 10 | Attempts: 205 | Last updated: Apr 23, 2018
This 10-item test will measure how well you understood the rules in writing down the correct chemical formulas of compounds. You have 5 minutes to complete the test. Identify the correct chemical formula of the...
Questions: 10 | Attempts: 2159 | Last updated: Jan 7, 2013
Questions: 5 | Attempts: 336 | Last updated: Jun 16, 2014
Nico Rosberg is at number one position in the Top 10 Formula One drivers of 2014. He belongs to which country?