Chemistry Super Quiz
English
Intermediate
Dive into a cool journey with this chemistry quiz where you will test your knowledge base and learn new interesting facts, do not forget to make some tea or coffee my friend. Enjoy!
Description
Tags
30
Questions
1 min
Per question
3:46
Average time
4.0
Contest Score
8
Participants
Educational explanations. 👍 Explanations cover why the correct answers are correct. E.g.: #q1, #q2, #q3 etc
1. Chemists never use '=' sign in chemical equations, as this means that both sides of the equation are identical, which is fine in maths, but not in chemistry. You could have used -> or →, which exists in Unicode, so supported by all deviced
2. You are saying that the most unstable element is Francium, as its half life is only 22 minutes. I am not sure, which element is the most unstable (it all depends on which isotope we are looking at), but it is definitely not Francium. For example Og-294 (Oganesson 294) has a half life of 0.89 milliseconds
3. In one of the questions you have said that reactants are substances that are involved in a chemical equation. What about the products? Products are also involved in a chemical equation and they are written after the →
4. It is probably worth to mention that the cost of antimatter is only an estimate, as we haven't produced that much antimatter
5. In a question about diamond vs. graphite you have said that "there is no difference" between them. This is absolutely wrong. They are made from the same element, however they are plenty of differences between them:
5.1 Graphite is soft and you can write with it, but diamond is very hard.
5.2 Graphite conducts electricity and diamond does not
5.3 They have a different structure, in diamond each carbon is bonded to 4 other carbons and in graphite each carbon is bonded only to 3 other carbons
5.4 They have different colours
5.5 Melting/Boiling point of diamond is much higher than melting/point of graphite