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Thank you for completing the friendly exercise.  Be sure there is an answer to all Part B questions in the boxes above.  Then, please scan and submit your work for Part B to the assignment according to the assignment instructions above within a few minutes. 

(WCSP25) School nurses often provide “ice packs” to injured students.  These packs do not contain ice!  Instead, the pack is squeezed or cracked to break an internal package allowing two chemicals to mix: water and ammonium chloride (NH4Cl).  The temperature of the pack becomes quite cold! Complete the following statements to be true: a. The system [drop1] heat. b.  The chemical reaction taking place is [drop2].  c. The sign of ΔH is [drop3] with respect to the system. [drop3]

(WCSP25) Complete the table below ranking the examples according to the criteria given: smallest largest Atomic radius: C, O, S [blank1] [blank2] [blank3] Ion Size: K+, Ca2+, Cl- [blank5] [blank6] [blank7] Ionization energy: Na, Mg, K [blank9] [blank10] [blank11] Energy:  UV light, green light, microwaves [blank13] [blank14] [blank15]   Periodic Table

(WCSP25) Fill in the table for protons, neutrons, and electrons for…   Element/Ion Protons Neutrons Electrons a. The ion: 45Sc2+ [blank1] [blank2] [blank3] b. Neutral atom* [blank4] [blank5] 14 13  * Be sure to indicate the isotope using the format #X   Periodic Table

(WCSP25) What is the expected sign (+/-) of ionization energy ?  Explain why in just a few words. 

15. NASA detected a burst of gamma rays from a neutron star in space. The gamma radiation had a frequency of 1.0 × 1019 Hertz and the burst released a total of 1.0 × 1044 J of energy.  (WCSP[x], 10 points)  a. What is the wavelength of radiation emitted in m? b. How many moles of photons are released during the burst?   Periodic Table Data Sheet Enter the value for part b in the box below.   

なんねんせいですか。

Match each of the following with the correct answer 

Arrange your pages in order: Q1, Q2, …, Q7 If you required more than one page for any problem, make a note at the bottom of the problem’s first page, “continued on last page”, and place the continuation work after Page 7. Show all pages, front and back, to the camera. Scan your pages to Gradescope (ideally using the Gradescope app). Link to the Gradescope page here for your convenience. Review your scans: Are they readable? Are they in order? Are they correctly oriented (portrait, not landscape)? Submit work to Gradescope. Submit this exam in D2L. This should close Honorlock. Remove the Honorlock extension.

Select the correct answer to the following. Which type of drawing is illustrated in the image below?