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Chemistry 101 A, 2019-20


Teacher: Mark Lukin

Room: EarthScience069
Time: Sunday 9:15AM - 10:00AM
Grades: 7-9


Homeworks

These homeworks are copyrighted material, posted here for use by SchoolNova students and parents. Everyone else is welcome to print a copy of these materials for their personal use; any redistribution or commercial use is prohibited

  • Assigned on 09/15: Classwork: Reading materials for the 2019-20 school year  |  
    Chapter 1. Solve problems and email them to mark.lukin@gmail.com
  • Assigned on 09/22:
    Read chapter 2, solve problems, email me to mark.lukin@gmail.com
  • Assigned on 09/29:
    Read Chapter 3 and email me solutions. (mark.lukin@gmail.com)
  • Assigned on 11/3:
    Read the section 5 (Oxygen and oxides), solve problems and email them to mark.lukin@gmail.com
  • Assigned on 11/17:
    Read the section 6 and learn the rules on acid naming. Read the section 7 and solve the problen #4. Keep in mind that one mole of any gas occupy 22.4 at normal pressure and room temperature
  • Assigned on 12/8:
    Read the section #8 (Salts and their reactions), and try to solve homework problems
  • Assigned on 01/5:
    Read the section 8 in full, especially subsections 8.4-8.5. Prepare to discuss it in class. Solve problems and email them to me.
  • Assigned on 01/19:
    Make the experiment with tea and red cabbage, as I explained in the class, make photos and email to me. Read the section 9, subsections: Interrelation between bases and acids.Classification of chemical reactions. Exchange reactions. Solve problems 1-4
  • Assigned on 02/2:
    Read chapters #9 and #10 in full. Solve the problem #6, chapter 9 and email the solution to me
  • Assigned on 02/9:
    Re-read about everything that we discussed previously and prepare for a practical test
  • Assigned on 02/23:
    Prepare for a practice test. You will be provided with the following solutions: CuSO4 CaCl2 Ca(NO3)2 KOH HCl ZnCl2 ZnSO4 AgNO3 Each bottle is labeled, but every label is placed on a wrong bottle: thus, the AgNO3 label is NOT on the bottle with the AgNO3 solution. You will have 40 minutes to make needed chemical reactions and decide which bottle contains which chemical.
  • Assigned on 03/1:
    Prepare for one more practice test. You will be provided with 1. pH paper 2. pipettes and test tubes 3. Labeled bottles with the following solutions: - NaOH - HCl - MgCl2 - Ca(NO3)2 - AgNO3 - Phenolphthaleine Each bottle is MISLABELED: every label is on a wrong bottle. Before the class, plan the experiment aimed to determine which solution is which. You are strongly encouraged to use the information provided in HW1. You also can find a solubility chart online (just google it). NOTE, this problem requires just logical thinking and minimal knowledge of Chemistry, so you are pretty capable of solving it.
  • Assigned on 03/8:
    Read the section #11 (Classification of elements. Halogens), solve problems and email them to me.
  • Assigned on 03/22: Classwork&Homework: Classwork and homework  |  
    Please, read sections 1-8, comment, and send me back the pdf with your comments. Solve problems after each section
  • Assigned on 04/19:
    Try to do the experiment that we discussed in the class WITHOUT platinum (so far). Phenolphthaleine is available from Amazon: https://www.amazon.com/s?k=phenolphthaleine&link_code=qs&sourceid=Mozilla-search&tag=mozilla-20 , so you can reproduce this experiment at home. For the beginning, use just copper wires and phenolphthaleine. Try different materials: sugar, vinegar, baking soda, table salt (whatever you can find) and record what you see in each case. Let's consider that is your homework.
  • Assigned on 05/3: Classwork/Homework: Atomic structure  |  

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