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QR Challenge: Chemistry 2nd Semester Final Exam Review (Sumer School)

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. If I am given 100 g of NaCl, how many moles is that?1.71 moles
2. The reactions that occurs in hot packs is an example of what reaction?Exothermic
3. Does the reaction increase or decrease when temperature increases?Increase
4. Lemon Juice had a pH of 2. Is it an acid or base?Acid
5. What is Avogadro's #?6.02 x 10^23
6. Calculate the molar mass of KNO3.101.06 g/mol
7. A solution with the maximum amount of solute that can be dissolved.Saturated
8. The TWO variables for Boyle's Gas Law.Volume and Pressure
9. What is the equation for Percent Yield?actual/theoretical x 100
10. What do you have to have to calculate a stoichiometry equation?balanced equation
11. On a pH scale a substance with a pH of 7 is said to be called what?neutral
12. A substance that dissolves into another substance is called.solute
13. Bleach has a pH of 13 is it an Acid or Base?Base
14. The reaction that occurs in cold packs is an example of what type of reaction?Endothermic
15. An unstable solution with more solute than an saturated solutions is called?Supersaturated
16. SI unit for heat energy.Joule(J)
17. What is Enthalpy (H)?amount of heat transferred
18. Two forms of energy.potential and kinetic
19. Which taste sour, acids or bases?acids
20. Energy of motion.kinetic energy
21. A basketball left outside in the cold and it becomes flat is an example of what gas law?Charles's
22. On a phase diagram what is it called when all three phases meet?Triple point
23. How many joules required to lower the temperature of 100g of iron (0.449J/gC) from 75C to 25C?q=-2245J
24. Number used in a stoichiometry equation to determine the amount of moles?Coefficient
25. 75 degrees Celsius is equal to _______ Kelvin.348
26. Three phases of matter.solid, liquid, gas

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=If_I_am_given_100_g_of_NaCl,_how_many_moles_is_that?

Question 1 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 2 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 3 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=Lemon_Juice_had_a_pH_of_2._Is_it_an_acid_or_base?

Question 4 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_Avogadro's_?

Question 5 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_molar_mass_of_KNO3.

Question 6 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 7 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=The_TWO_variables_for_Boyle's_Gas_Law.

Question 8 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 9 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 10 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=On_a_pH_scale_a_substance_with_a_pH_of_7_is_said_to_be_called_what?

Question 11 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 12 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=Bleach_has_a_pH_of_13_is_it_an_Acid_or_Base?

Question 13 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 14 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 15 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 16 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_Enthalpy_(H)?

Question 17 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 18 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=Which_taste_sour,_acids_or_bases?

Question 19 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 20 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 21 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 22 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=How_many_joules_required_to_lower_the_temperature_of_100g_of_iron_(0.449J/gC)_from_75C_to_25C?

Question 23 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 24 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

https://www.classtools.net/QR/decode.php?text=75_degrees_Celsius_is_equal_to_________Kelvin.

Question 25 (of 26)

 


Chemistry 2nd Semester Final Exam Review (Sumer School): QR Challenge

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

Question 26 (of 26)