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QR Challenge: Chem Final Exam Scavenger Hunt

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

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. The mass of 2 moles of oxygen atoms is32.00 g
2. The lowest whole-number ratio of elements in a compound is called theempirical formula
3. In the reaction N2 + 3H2 ® 2NH3, what is the mole ratio of nitrogen to ammonia?1:2
4. Calculate the molecular formula for a compound is K2Cr2O4 what is the empirical formula?KCrO2
5. The coefficients in a chemical equation represent therelative numbers of moles of reactants and products
6. Oxygen in nitrogen is an example of which solute-solvent combination?gas-gas
7. To conduct electricity, a solution must containions
8. Which of the following is likely to produce crystals if disturbed?a supersaturated solution or a concentrated solution
9. In the expression like dissolves like, the word like refers to similarity in molecularpolarity
10. As temperature increases, solubility of solids in liquidsincreases
11. Which of the following is chloric acid?HClO HClO3
12. Hydroxides of Group 1 metalsare all strong bases or are all acids
13. The pH scale in general use ranges from0 to 14
14. An electron-pair acceptor is aBronsted-Lowry base
15. A water solution whose pH is 10 is alwaysbasic
16. What is the hydroxide ion concentration of a solution whose pH is 12.402.5 X 10-2 M
17. In the reaction HClO3 + NH3 NH4+ + ClO3–, the conjugate base of HClO3 isClO3-
18. Convert the pressure 0.840 atm to mm Hg.638 mm Hg
19. The combining of two nuclei to form one nucleus with a larger mass is called a ____________.Fusion
20. An ice cube has fallen in warm water. Which way will heat flow?Into the ice cube

 



Chem Final Exam Scavenger Hunt: QR Challenge

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Question 1 (of 20)

 



Chem Final Exam Scavenger Hunt: QR Challenge

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Question 2 (of 20)

 



Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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Chem Final Exam Scavenger Hunt: QR Challenge

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