QR Challenge: Writing and Naming Chemical Formulas
Teacher Notes
A. Prior to the lesson:
1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.
2. If their phone camera doesn't automatically detect and decode QR codes, ask students to
- Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
- Bring these devices into the lesson.
3. Print out the QR codes.
4. Cut them out and place them around your class / school.
B. The lesson:
1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.
2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.
3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!
C. TIPS / OTHER IDEAS
4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.
Questions / Answers (teacher reference)
Question | Answer |
1. copper (II) chloride | CuCl2
|
2. lithium acetate | LiCH3COO
| 3. vanadium (III) selenide | VSe
| 4. manganese (IV) nitride | Mn3N4
| 5. beryllium oxide | BeO
| 6. sodium sulfate | Na2SO4
| 7. aluminum arsenide | AlAs
| 8. potassium permanganate | KMnO4
| 9. chromium (VI) cyanide | Cr(CN)6
| 10. tin (II) sulfite | SnSO3
| 11. vanadium (V) fluoride | VF5
| 12. ammonium nitrate | NH4NO3
| 13. NaBr | sodium bromide
| 14. Ca(C2H3O2)2 | calcium acetate
| 15. P2O5 | diphosphorus pentoxide
| 16. Ti(SO4)2 | Titanium (II) sulfate
| 17. FePO4 | iron (III) phosphate
| 18. K3N | potassium nitride
| 19. SO2 | sulfur dioxide
| 20. CuOH | copper(I) hydroxide
| 21. Zn(NO2)2 | zinc nitrite
| 22. V2S3 | Vanadium (III) sulfide
| 23. SCl4 | sulfur tetrachloride
| 24. CH4 | carbon tetrahydride
| 25. B2Si | diboron monosilicide
| 26. NF3 | nitrogen trifluoride
| 27. hexaboron monosilicide | B6S
| 28. chlorine dioxide | ClO2
| 29. hydrogen iodide | HI
| 30. iodine pentafluoride | IF5
| 31. dinitrogen trioxide | N2O3 |
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=copper_(II)_chloride
Question 1 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=lithium_acetate
Question 2 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=vanadium_(III)_selenide
Question 3 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=manganese_(IV)_nitride
Question 4 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=beryllium_oxide
Question 5 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=sodium_sulfate
Question 6 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=aluminum_arsenide
Question 7 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=potassium_permanganate
Question 8 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=chromium_(VI)_cyanide
Question 9 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=tin_(II)_sulfite
Question 10 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=vanadium_(V)_fluoride
Question 11 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=ammonium_nitrate
Question 12 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=NaBr
Question 13 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=Ca(C2H3O2)2
Question 14 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=P2O5
Question 15 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=Ti(SO4)2
Question 16 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=FePO4
Question 17 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=K3N
Question 18 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=SO2
Question 19 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=CuOH
Question 20 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=Zn(NO2)2
Question 21 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=V2S3
Question 22 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=SCl4
Question 23 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=CH4
Question 24 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=B2Si
Question 25 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=NF3
Question 26 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=hexaboron_monosilicide
Question 27 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=chlorine_dioxide
Question 28 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=hydrogen_iodide
Question 29 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=iodine_pentafluoride
Question 30 (of 31)
Writing and Naming Chemical Formulas: QR Challenge
https://www.classtools.net/QR/decode.php?text=dinitrogen_trioxide
Question 31 (of 31)