QR Challenge: Covalent Bonds (with Ionic and Acids)

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. Which is the correct formula for the compound formed between beryllium and nitrogen?	Be3N2
2. Which is the correct formula for the compound Manganese (III) Fluoride?	MnF3
3. Which is the correct name for the compound FeO?	a
4. How many single covalent bonds are Oxygen atoms likely to form?
5. What are the 7 diatomic molecules?
6. How many single covalent bonds can halogens form?
7. What is the electronegativity difference between Sulfur and Chlorine?	a
8. Specifically, what type of bond do sulfur and chlorine form?	a
9. What is a polar covalent bond?	a
10. What is a nonpolar covalent bond?	a
11. What is the most common example of a polar molecule?	a
12. Diatomic molecules form what type of bond?(hint: look at their en difference)	a
13. The electrons in covalent bonds _____ electrons.	a
14. Covalent bonds occur between a ________ and a ________.	a
15. What are 2 properties of Covalent bonds that we studied? (hint: lab)	a
16. Which bonds are stronger (have stronger intermolecular forces) covalent or ionic?	a
17. What is the correct name for S3F7?	a
18. What is the correct formula for dicarbon tetroxide?	a
19. What is the correct name for H2SO3?	a
20. What is the correct formula for hydrochloric acid?	a
21. What is the correct name for the formula TiO2?	a
22. The name of an oxyacid has the suffix -ate acid. What is the suffix of the oxyanion?	a
23. Draw the correct Lewis structure for CH3F.	a
24. Which has a lower boiling point covalent bonds or ionic bonds?
25. What is the electronegativity difference in polar covalent bond?

 

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