QR Challenge: Ionic Bonding Answers
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. Mg3N2 | 1
|
2. metals + nonmetals | 2
| 3. K2O | 3
| 4. gaining or losing electrons | 4
| 5. XY2 | 5
| 6. Li2S | 6
| 7. XY2 | 7
| 8. C | 8
| 9. Na2O | 9
| 10. X2Y or Na2O | 10
| 11. C | 11
| 12. aluminum and oxygen would form an ionic bond through the transfer of electrons, not the sharing of electrons | 12
| 13. CaBr2 | 13
| 14. B and D | 14
| 15. Bring Picture to Teacher | 15
| 16. magnesium nitride | 16
| 17. B | 17
| 18. Ca3P2 | 18
| 19. Bring Picture to Teacher | 19
| 20. Al2S3 | 20
| 21. C | 21
| 22. potassium nitride | 22
| 23. X2Y3 | 23
| 24. A and C | 24
| 25. D | 25
| 26. Bring Picture to Teacher | 26
| 27. barium has a charge of 2+ and nitride a charge of 3-, the resulting formula should be Ba3N2 | 27
| 28. AlF3 | 28
| 29. Bring Picture to Teacher | 29
| 30. the second name does not end in the suffix -ide | 30
| 31. rubidium oxide | 31
| 32. XY2 | 32
| 33. flourine is donating its electrons and magnesium is accepting them, it should be the other way around | 33
| 34. Bring Picture to Teacher | 34
| 35. Cu3N2 | 35
| 36. lead (II) oxide | 36
| 37. barium sulfate | 37
| 38. Bring Picture to Teacher | 38
| 39. Na2CO3 | 39
| 40. X2Y3 | 40
| 41. KNO3 | 41
| 42. tin (IV) phosphide | 42
| 43. A | 43
| 44. Ca(OH)2 | 44
| 45. magnesium hydroxide | 45 |
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Mg3N2
Question 1 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=metals-+-nonmetals
Question 2 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=K2O
Question 3 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=gaining-or-losing-electrons
Question 4 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=XY2
Question 5 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Li2S
Question 6 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=XY2
Question 7 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=C
Question 8 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Na2O
Question 9 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=X2Y-or-Na2O
Question 10 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=C
Question 11 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=aluminum-and-oxygen-would-form-an-ionic-bond-through-the-transfer-of-electrons,-not-the-sharing-of-electrons
Question 12 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=CaBr2
Question 13 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=B-and-D
Question 14 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Bring-Picture-to-Teacher
Question 15 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=magnesium-nitride
Question 16 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=B
Question 17 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Ca3P2
Question 18 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Bring-Picture-to-Teacher
Question 19 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Al2S3
Question 20 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=C
Question 21 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=potassium-nitride
Question 22 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=X2Y3
Question 23 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=A-and-C
Question 24 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=D
Question 25 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Bring-Picture-to-Teacher
Question 26 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=barium-has-a-charge-of-2+-and-nitride-a-charge-of-3-,-the-resulting-formula-should-be-Ba3N2
Question 27 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=AlF3
Question 28 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Bring-Picture-to-Teacher
Question 29 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=the-second-name-does-not-end-in-the-suffix--ide
Question 30 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=rubidium-oxide
Question 31 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=XY2
Question 32 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=flourine-is-donating-its-electrons-and-magnesium-is-accepting-them,-it-should-be-the-other-way-around
Question 33 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Bring-Picture-to-Teacher
Question 34 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Cu3N2
Question 35 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=lead-(II)-oxide
Question 36 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=barium-sulfate
Question 37 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Bring-Picture-to-Teacher
Question 38 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Na2CO3
Question 39 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=X2Y3
Question 40 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=KNO3
Question 41 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=tin-(IV)-phosphide
Question 42 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=A
Question 43 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=Ca(OH)2
Question 44 (of 45)
Ionic Bonding Answers: QR Challenge
https://www.classtools.net/QR/decode.php?text=magnesium-hydroxide
Question 45 (of 45)