QR Challenge: Acid and Base Naming

Created using the ClassTools QR Treasure Hunt Generator

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. Write the formula for Nitric Acid	HNO3
2. Write the formula for Chloric Acid	HClO3
3. Name the following acid HClO4	Perchloric Acid
4. Name the following acid H3PO3	Phosphorous Acid
5. Name the following base NaOH	Sodium Hydroxide
6. Write the formula for Magnesium hydroxide	Mg(OH)2
7. Write the formula for Ammonium hydroxide	(NH)4(OH)
8. Write the name for Ca(OH)2	Calcium Hydroxide
9. Write the formula for Hydrofluoric Acid	HF
10. Write the name for HI	Hydroiodic Acid
11. Write the name for HBr	Hydrobromic acid
12. Write the formula for Sulfurous acid	H2SO3
13. Write the formula for Chlorous acid	HClO2
14. Write the name for HNO2	Nitrous Acid
15. Write the formula for Sulfuric Acid	H2SO4

 

---