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QR Challenge: Reaction Types Final 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. A _________ is a force of attraction between two or more atoms.Chemical Bond
2. When two nonmetals share electronsCovalent Bond
3. When there is a transfer of electrons from metal to nonmetalsionic bond
4. When the attraction of one atoms protons to the other atoms electrons causes an overlap of the electrons.metallic bond
5. Show a bond between sodium and chlorinethis is an ionic bond where sodium transfers one electron to chlorine
6. What is the oxidation number for Oxygen2-
7. Describe why P4 is just a molecule.bond between all nonmetals of one type of atom
8. Why is Al2O3 a compound?It has a metal in it
9. Draw a lewis structure of LithiumLi with one electron on top
10. What are the four types of chemical reactions we studied this yearsingle replacement, double replacement, synthesis and decomposition
11. This reaction type is when two smaller units react to form one bigger unit.synthesis
12. This type of reaction is when one bigger unit separates into two or more smaller units.decomposition
13. This type of reaction occurs when two atoms switch places in a chemical reaction.double replacement
14. What are 5 signs of a chemical reaction?light, sound, bubbling, heat, color change, solid formation
15. Balance and name the reaction type____ LiCl + ____ Br2 -->___ LiBr + ____ Cl2 __2__ LiCl + ____ Br2 -->___2_ LiBr + ____ Cl2 (SR)
16. ____ AlBr3 + ____ K --> ____ KBr + ____ Al____ AlBr3 + __3__ K __3__ KBr -->____ Al (D

 


Reaction Types Final Review: QR Challenge

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

Question 1 (of 16)

 


Reaction Types Final Review: QR Challenge

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

Question 2 (of 16)

 


Reaction Types Final Review: QR Challenge

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

Question 3 (of 16)

 


Reaction Types Final Review: QR Challenge

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

Question 4 (of 16)

 


Reaction Types Final Review: QR Challenge

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

Question 5 (of 16)

 


Reaction Types Final Review: QR Challenge

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

Question 6 (of 16)

 


Reaction Types Final Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Describe_why_P4_is_just_a_molecule.

Question 7 (of 16)

 


Reaction Types Final Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Why_is_Al2O3_a_compound?

Question 8 (of 16)

 


Reaction Types Final Review: QR Challenge

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

Question 9 (of 16)

 


Reaction Types Final Review: QR Challenge

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

Question 10 (of 16)

 


Reaction Types Final Review: QR Challenge

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

Question 11 (of 16)

 


Reaction Types Final Review: QR Challenge

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

Question 12 (of 16)

 


Reaction Types Final Review: QR Challenge

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

Question 13 (of 16)

 


Reaction Types Final Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_are_5_signs_of_a_chemical_reaction?

Question 14 (of 16)

 


Reaction Types Final Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Balance_and_name_the_reaction_type_____LiCl_+______Br2__-->____LiBr_+______Cl2

Question 15 (of 16)

 


Reaction Types Final Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=_____AlBr3_+______K_-->______KBr_+______Al

Question 16 (of 16)