QR Challenge: Chemistry Review 4

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.

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. What is the name of ICl3? Next: Mrs. Gregory's blue closet	clue 1
2. What type of intermolecular bond forms between two molecules of HCl? Dipole-dipole, hydrogen bond, London dispersion. Next: The front of the gym	clue 2
3. In 7.32 seconds, 2.5 g of argon-35 decay to leave only 0.15625 g. What is the half-life of argon-35 Next: Girl's bathroom by Mrs. Lawrence's room	clue 3
4. What groups are in the s block? Next: Door outside of Mrs. Bond's office	clue 4
5. What is the identity of a metal with a volume of 12.5 cm3 and a mass of 98.25 g? Next: Mrs. Gregory's room fume hood	clue 5
6. Write the isotope notation for an ion that has a charge of -2 with 36 electrons and 30 neutrons. Next: Short activity bus	clue 6
7. Name the subatomic particle with a mass of 1/2000 amu, negative charge and is found outside of the nucleus. Next: Bench by the front office	clue 7
8. What is the wavelength and type of electromagnetic radiation emitted when an electron falls from n6 to n3? Next: Teacher's lounge (new building)	clue 8
9. Write the full electron configuration for arsenic. Next: Mr. Hale's door	clue 9
10. Write the noble gas notation for barium. Next: Mrs. Gregory's car	clue 10
11. What element in the halogen group has the largest atomic radius? Next: Right side of the auditorium	clue 11
12. Write the formula for iron (III) sulfate and sulfur trioxide. Mr. Jackie's house.	clue 12
13. Arrange the atoms from the smallest electronegativity to greatest electronegativity (Al, F, Zr) Next: Library door	clue 13
14. Write the dot diagram for an atom of germanium. Next: Lunchroom door	clue 14
15. What type of bond is formed between CuIO3? What is the name of the compound? Next: Left side of the auditorium	clue 15
16. What type of molecular geometry does PH3 have? Next: Mr. Beirne's shop door	clue 16

 

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