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QR Challenge: CP Chemistry Fall Semester Final

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. 1.State the number of valence electrons in each atom below: He, Na, Si?He 2
2. 2.A solid substance has a density of 1.677g/mL. What is the volume of 17.5g of this substance?1.26ml
3. 3.A student was trying to calculate the density of ethanol. Using his data, answer the questions below if his calculated average experimental density is 0.93g/mL and the accepted density of ethanol is 0.79g/mL, What is the percent error?12%
4. 4.Convert each number below to the CORRECT SCIENTIFIC NOTATION:21.8 x 10-5 mL, 0.0043 km?2.18
5. 5.For each of the numbers below, determine how many significant figures they have:760 mm, 21.010 cm?2
6. 6.When the molecules gather together, this is an example of a ______ reaction (cold)?endo
7. 7.Write the full electron configurations and show valence electrons for Phosphorus (#15)?varies
8. 8.Write the abbreviated or noble gas configurations and show valence electrons for: Tungsten (#74)?varies
9. 9.Draw the complete electron configuration and a noble gas configuration for the following elements; Fe?Varies
10. 10.In the following pairs, circle the element that answers the question best: Highest ionization energy Mg or Cl?Mg
11. 11.In the following pairs, circle the element that answers the question best: Largest Electronegativity li or N?N
12. 12.How many total electrons can be held by the 3rd principle energy level?18
13. 13.A covalent bond consists of a shared electron pair, true or false?true
14. 14.__________ are charged particles that used to be a neutral atom but they have lost or gained electrons?ions
15. 15.An American chemist, ___________, developed the concept of electronegativity, for predicting the degree to which bonding pairs of electrons are shared equally or (more often) unequally between atoms?Linus Pauling
16. 16. Write formulas is correct for the following compound; tin(IV) Sulfide?SnS
17. 17. The explosive TNT has the molecular formula C7H5(NO2)3. How many atoms in total are present in one molecule of C7H5(NO2)3?21
18. 18.What is the correct name for the transition metal; Fe2O3?Iron (III)
19. 19.Based on their electronegativities, determine what type of bond is formed in the compounds below: N-N?Covalent Non-polar
20. 20._________ is defined how many wave peaks pass a certain point per given time?frequency
21. 21.The following electron configurations belong to which elements; 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2?Zirconium
22. 22.11. How many total electrons can be held in the 6d orbital?10
23. 23.Once sodium forms an ion and becomes Na +1, the electron value changes due to the charge. How many total electrons will it have?10
24. 24.An eminent scientist named _________did not believe in chemistry and stated that there were only 4 elements?Aristotle
25. 25.When heated, atoms always emits _________ lines as the electromagnetic "barcode”?Spectral
26. 26.Thomson called these particles corpuscles that are negatively charged_________, because the gas he used was neutral?electrons
27. 27.______________ in a measurement data set will include all known digits and one estimated value?Sig figs
28. 28.How many sig figs present in the following data point; 4,000,000?1

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=1.State_the_number_of_valence_electrons_in_each_atom_below:_He,_Na,_Si?

Question 1 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=2.A_solid_substance_has_a_density_of_1.677g/mL._What_is_the_volume_of_17.5g_of_this_substance?

Question 2 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=3.A_student_was_trying_to_calculate_the_density_of_ethanol.__Using_his_data,_answer_the_questions_below_if_his_calculated_average_experimental_density_is_0.93g/mL_and_the_accepted_density_of_ethanol_is_0.79g/mL,_What_is_the_percent_error?

Question 3 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=4.Convert_each_number_below_to_the_CORRECT_SCIENTIFIC_NOTATION:21.8_x_10-5_mL,_0.0043_km?

Question 4 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=5.For_each_of_the_numbers_below,_determine_how_many_significant_figures_they_have:760_mm,_21.010_cm?

Question 5 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=6.When_the_molecules_gather_together,_this_is_an_example_of_a________reaction_(cold)?

Question 6 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=7.Write_the_full_electron_configurations_and_show_valence_electrons_for_Phosphorus_(15)?

Question 7 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=8.Write_the_abbreviated_or_noble_gas_configurations_and_show_valence_electrons_for:_Tungsten_(74)?

Question 8 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=9.Draw_the_complete_electron_configuration_and_a_noble_gas_configuration_for_the_following_elements;_Fe?

Question 9 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=10.In_the_following_pairs,_circle_the_element_that_answers_the_question_best:_Highest_ionization_energy_Mg_or_Cl?

Question 10 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=11.In_the_following_pairs,_circle_the_element_that_answers_the_question_best:_Largest_Electronegativity_li_or_N?

Question 11 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=12.How_many_total_electrons_can_be_held_by_the_3rd_principle_energy_level?

Question 12 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=13.A_covalent_bond_consists_of_a_shared_electron_pair,_true_or_false?

Question 13 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=14.___________are_charged_particles_that_used_to_be_a_neutral_atom_but_they_have_lost_or_gained_electrons?

Question 14 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=15.An_American_chemist,____________,_developed_the_concept_of_electronegativity,_for_predicting_the_degree_to_which_bonding_pairs_of_electrons_are_shared_equally_or_(more_often)_unequally_between_atoms?

Question 15 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=16._Write_formulas_is_correct_for_the_following_compound;_tin(IV)_Sulfide?

Question 16 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=17._The_explosive_TNT_has_the_molecular_formula_C7H5(NO2)3.__How_many_atoms_in_total_are_present_in_one_molecule_of_C7H5(NO2)3?

Question 17 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=18.What_is_the_correct_name_for_the_transition_metal;_Fe2O3?

Question 18 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=19.Based_on_their_electronegativities,_determine_what_type_of_bond_is_formed_in_the_compounds_below:_N-N?

Question 19 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=20.__________is_defined_how_many_wave_peaks_pass_a_certain_point_per_given_time?

Question 20 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=21.The_following_electron_configurations_belong_to_which_elements;_1s2_2s2_2p6_3s2_3p6_4s2_3d10__4p6_5s2_4d2?

Question 21 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=22.11. How_many_total_electrons_can_be_held_in_the_6d_orbital?

Question 22 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=23.Once_sodium_forms_an_ion_and_becomes_Na_+1,_the_electron_value_changes_due_to_the_charge._How_many_total_electrons_will_it_have?

Question 23 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=24.An_eminent_scientist_named__________did_not_believe_in_chemistry_and_stated_that_there_were_only_4_elements?

Question 24 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=25.When_heated,_atoms_always_emits___________lines_as_the_electromagnetic_"barcode”?

Question 25 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=26.Thomson_called_these_particles_corpuscles_that_are_negatively_charged_________,_because_the_gas_he_used_was_neutral?

Question 26 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=27._______________in_a_measurement_data_set_will_include_all_known_digits_and_one_estimated_value?

Question 27 (of 28)

 


CP Chemistry Fall Semester Final: QR Challenge

https://www.classtools.net/QR/decode.php?text=28.How_many_sig_figs_present_in_the_following_data_point;_4,000,000?

Question 28 (of 28)