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QR Challenge: Chemical Names and Formulas Review

Created using the ClassTools QR Treasure Hunt Generator

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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. When Group 2 elements form ions, they lose _________ electrons?2
2. What is the Stock name for the Ferrous ion?Iron(II) ion
3. An -ate or -ite at the end of a compound name usually indicates that the compound contains ____.oxygen
4. Which of the following is an example of an ionic compound? N2O4, H2O, CO2, NaClNaCl
5. What is the correct formula for magnesium phosphate?Mg3(PO4)2
6. What does it mean if you have a BINARY MOLECULAR compound? (How many elements? And what type would it consist of… metallic, nonmetallic or both?)2 bonded nonmetallic elements
7. Which of the following correctly shows a prefix used in naming binary molecular compounds?Tri - 3, Penta - 6, Tetra - 5, Octa - 8
8. What is the formula for sulfur hexafluoride?SF6
9. Suppose you encounter a chemical formula with H as the cation. What do you know about this compound immediately?It is an acid
10. What is the maximum number of electrons in the second principal energy level? (CH 5 Review)8
11. Which of the following is the correct name for N2O4?Dinitrogen tetraoxide
12. What is the formula for hydrobromic acid?HBr
13. What is the formula for Manganese (III) oxideMn2O3
14. CuO (hint, write the charge of O and the charge Cu must be… either I or II)Copper (II) oxide
15. What is the chemical name of H2O?Dihydrogen monoxide
16. A compound that contains the hydroxide ion, -OH, is known as a ____.base

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=When-Group-2-elements-form-ions,-they-lose-_________-electrons?

Question 1 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-the-Stock-name-for-the-Ferrous-ion?

Question 2 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=An--ate-or--ite-at-the-end-of-a-compound-name-usually-indicates-that-the-compound-contains-____.

Question 3 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Which-of-the-following-is-an-example-of-an-ionic-compound?-N2O4,-H2O,-CO2,-NaCl

Question 4 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-the-correct-formula-for-magnesium-phosphate?

Question 5 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-does-it-mean-if-you-have-a-BINARY-MOLECULAR-compound?-(How-many-elements?-And-what-type-would-it-consist-of…-metallic,-nonmetallic-or-both?)

Question 6 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Which-of-the-following-correctly-shows-a-prefix-used-in-naming-binary-molecular-compounds?

Question 7 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-the-formula-for-sulfur-hexafluoride?

Question 8 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Suppose-you-encounter-a-chemical-formula-with-H-as-the-cation.-What-do-you-know-about-this-compound-immediately?

Question 9 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-the-maximum-number-of-electrons-in-the-second-principal-energy-level?-(CH-5-Review)

Question 10 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Which-of-the-following-is-the-correct-name-for-N2O4?

Question 11 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-the-formula-for-hydrobromic-acid?

Question 12 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-the-formula-for-Manganese-(III)-oxide

Question 13 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=CuO-(hint,-write-the-charge-of-O-and-the-charge-Cu-must-be…-either-I-or-II)

Question 14 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-the-chemical-name-of-H2O?

Question 15 (of 16)

 


Chemical Names and Formulas Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=A-compound-that-contains-the-hydroxide-ion,--OH,-is-known-as-a-____.

Question 16 (of 16)