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QR Challenge: Intermolecular Forces 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. Explain why C₅H₁₂ has a higher boiling point that C₂H₆C5H12 more electrons and is more polarizable
2. List the IMFs of NH₃LDF, HB, Dipole-Dipole
3. What is the strongest IMF?ion-ion
4. What type of IMF does CH₄ possess?LDF only
5. What two metals create the alloy Brass?Copper & Zinc
6. On the basis of strength of IMFs, which of the following would have the strongest boiling point? Br₂, Cl₂, F₂, or N₂?Br₂
7. Diamond is classified as what type of solid?Covalent network
8. Which substances exhibits the weakest IMFs: IF₃, SO₂, CO₂, SiO₂, or PH₃?CO₂
9. Which has the larger melting point: MgO or KCl?MgO
10. A student obtains a liquid sample of green food coloring that is known to contain a mixture of two solid pigments, one blue and one yellow, dissolved in an aqueous solution of ethanol. Which of the following laboratory setups is most appropriate for the student to use in order to separate and collect a substantial sample of each of the two pigments? - Paper Chromatography, Column chromatography, distillation, or filtrationColumn chromatography

 


Intermolecular Forces Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Explain_why_C₅H₁₂_has_a_higher_boiling_point_that_C₂H₆

Question 1 (of 10)

 


Intermolecular Forces Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=List_the_IMFs_of_NH₃

Question 2 (of 10)

 


Intermolecular Forces Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_strongest_IMF?

Question 3 (of 10)

 


Intermolecular Forces Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_type_of_IMF_does_CH₄_possess?

Question 4 (of 10)

 


Intermolecular Forces Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_two_metals_create_the_alloy_Brass?

Question 5 (of 10)

 


Intermolecular Forces Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=On_the_basis_of_strength_of_IMFs,_which_of_the_following_would_have_the_strongest_boiling_point?_Br₂,_Cl₂,_F₂,_or_N₂?

Question 6 (of 10)

 


Intermolecular Forces Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Diamond_is_classified_as_what_type_of_solid?

Question 7 (of 10)

 


Intermolecular Forces Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Which_substances_exhibits_the_weakest_IMFs:_IF₃,_SO₂,_CO₂,_SiO₂,_or_PH₃?

Question 8 (of 10)

 


Intermolecular Forces Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Which_has_the_larger_melting_point:_MgO_or_KCl?

Question 9 (of 10)

 


Intermolecular Forces Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_student_obtains_a_liquid_sample_of_green_food_coloring_that_is_known_to_contain_a_mixture_of_two_solid_pigments,_one_blue_and_one_yellow,_dissolved_in_an_aqueous_solution_of_ethanol._Which_of_the_following_laboratory_setups_is_most_appropriate_for_the_student_to_use_in_order_to_separate_and_collect_a_substantial_sample_of_each_of_the_two_pigments?_-_Paper_Chromatography,_Column_chromatography,_distillation,_or_filtration

Question 10 (of 10)