| Question | Answer | % Correct |
|---|---|---|
| Helium is a noble gas | True | 88%
|
| Vinegar is an acid | True | 84%
|
| Mercury is liquid at room temperature | True | 82%
|
| Oxygen is the most abundant element in the universe | False | 73%
|
| Protons orbit the nucleus of an atom | False | 72%
|
| Chemical reactions can occur in both the forward and reverse direction | True | 69%
|
| Atomic mass is the same as molecular mass | False | 67%
|
| Metals have high melting points | True | 67%
|
| Water is polar | True | 62%
|
| All bases have hydroxide | False | 48%
|