Hon Chemistry 3-29-22 Chapter 4 Overview

HON CHEMISTRY: God bless as you study for the chapter 4 test! Here’s our overview of the test and look back at some of the “problems” from the chapter.

Have you checked out the Chapter 4 Stuff to Know Sheet? Make sure you give yourself plenty of time to memorize the things you need to memorize so that you can apply them on the test. And practice, practice, practice, the problems and electron configurations. Did I mention that already?

What about applications for discussion? Photoelectric effect, spectroscopy, etc.? Another great idea for studying is to watch the videos that we watched in class, and others – super helpful as you study for the test!! Here are some of them:
Spectrum of the Stars (overivew of the results of the spectroscopy lab you did, shows the connection between our lab on spectroscopy and how we can identify elements), Emission Spectrum of Hydrogen (how we use it to know about the energy levels in an atom), Quantum Mechanics (about the roles of Bohr, Schrodinger, Heisenberg), and also Animated Quantum Mechanics.

God bless you as you study! I’ll be praying for you!!

flickr photo by only alice

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20 thoughts on “Hon Chemistry 3-29-22 Chapter 4 Overview

  1. Triumph- My triumph for this week is getting a head start on the project. It is a triumph because i am trying not to fall behind before i leave for my mission trip.

  2. Triumph- My triumph for the week is that I got a good amount of research done for my project. I figure out most the items I’m going to bring and their multiple uses that can help me survive.

  3. Triumph- My triumph for this week is getting a significant amount of research done for my project. I have researched all of the uses of the items, and I have decided on many items I will bring.

  4. Triumph- My triumph this week is that I was able to understand electron configuration better for the test. After figuring out how the aufbau chart works with the periodic table and practice games, I was able to do the problems easily.

  5. Triumph – My triumph for the week was finishing my research on my project items. Although it took a lot of internet surfing and book reading, I believe I am starting to figure out how to survive in the desert!

  6. Triumph- This week I was able to pick all ten of my items and begin to piece together my paper. I’m excited to continue to work on this challenging project!

  7. Triumph- my triumph this week would be the amount of work that I’ve put into my project. I’m working ahead and I’m almost 100% sure on the items that I’m taking and how they are going to help me survive in the desert

  8. T- triumph- this week I struggled making time for my project, although I struggled, I found some time to work on it and completed a great deal of research .

  9. Triumph – this week I triumphed in study for my test I started days before the test spacing out studying as to not get over whelmed with all the material on it and I have also worked on my project a decent amount so I don’t get behind on jt.

  10. Triumph- This week I think I successfully caught back up in my schoolwork and I studied well for the chemistry test. I think I studied well because I didn’t wait till the last minute and I actually took the time to understand the material instead of just looking over my notes taken in class.

  11. Ask- Throughout the last lesson, we focused on how scientists found that electrons have a lot of similar properties to waves of light. I would ask why don’t protons function the same way and what we study to understand how protons work instead.

  12. Ask:
    In the triboluminescence lab, we used Wint-O-Green Lifesavers.
    Question: I was wondering if all the flavors of Lifesavers would give off a spark or just that flavor?
    Answer: Most all hard sugar candy will give off some form of glow in the visible spectrum or a relatively bright flash when crunched, but the Wint-O-Green flavor has methyl salicylate in it (make it brighter). Methyl salicylate absorbs light at short wavelengths and then emits light at longer wavelengths, giving off visible light.

  13. Ask- How are frequency and energy directly proportional in a wave?

    Answer- The formula for energy is E=hv, which is energy= Planck’s constant x frequency. If you rearrange the formula to solve for frequency, it will be v=E/h Since Planck’s constant is always 6.626 x 10^-34 Js, the answer you get for frequency will always be directly proportional to its energy.

  14. Ask- Why do some elements exhibit deviant behavior from the aufbau chart?
    The lowest possible energy state for an atom may not always be in the order of the aufbau chart. Sometimes an atom may give an electron to a lower energy level and then go back and fill up a higher level. This causes the atom to have lower energy, resulting in a more stable atom.

  15. Ask: We learned that we cant observe electrons because light has a dual wave-particle nature. Light when shined on an electron will cause it to jump energy levels since light emits photons about the energy of an electron. How close have scientist been to being able to directly observe electrons? Will is ever be possible?

    Answer: An international team of scientists led by groups from the Max Planck Institute of Quantum Optics in Garching, Germany, and the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and the University of California at Berkeley used ultrashort flashes of laser light to directly observe the movement of an atom’s outer electrons. They used a process called attosecond absorption spectroscopy to see electrons.

  16. Ask- are the green life savers the only candy’s that are able to give off the light whenever crushed? The answer is that almost all hard and sugar based candys will emit some color of light or glow whenever crushed under hard force/pressure

  17. Ask – Why can stars vary in color? Does it have to do with the electromagnetic spectrum?

    A star’s color is dependent on a couple of different things. First of all, a star’s color will depend on its temperature. When a star burns hotter, they tend to have more energy and so tends to push more towards the blue end of the electromagnetic visible light spectrum. The same thing happens when the star is cooler, except that the color leans more towards the red side of the spectrum (as the stars tend to have less energy). Another thing that affects stars is their compositions. We learned in the last chapter that unique elements emit unique wavelengths of light, and all stars are composed slightly differently. Because of this, the light that stars emit is actually a combination of the visible light wavelengths of its elements, which can cause different color hues depending on the exact composition of the star.

  18. Ask: We used sugar cubes to create a spark of light in the triboluminescence lab, why did we use sugar and not something else?

    – so triboluminescence is essentially the physical stimulation of some substance which results in a spark of light produced. The reason we used sugar cubes in the lab is in sugar crystals, if you break them it results in a small magnetic field being created, then when the positive and negative charges attempt to join back together, it releases a “spark” of visible light.

  19. Ask- In our triboluminescence lab we used masking tape to create a faint light, what chemical is reacting to cause the light?
    Answer: A chemical isn’t reacting in this version of triboluminescence. Instead this is the cause of electricity. An electrical current is formed from the amount of charge that builds up on the tape’s surface after it has been ripped. Therefore, giving off light. This sorta relates to lightning with its involvement of electricity.

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