High School Chemistry

April 17

Enjoy Chapter 16…make a great study sheet…use it on your exam…and you’ll be finished with high school chemistry!

By the way, read the chapter until you get to the information regarding acids and bases.  You may stop there.

April 10

Test on Chapter 15 next week and review questions are due.  Ask me for the answers if you want them!

April 3

Read Chapter 15 and write your lab report.  Expect a short quiz on your reading.

March 27

Test next week, Chapter 13.  You’re welcome to ask me for the answers to the review questions.  Also, your lab report for the calorimetry lab (13.2?) is due.

Lord willing, I’ll see you next week!

March 20

Read and study Module 13, “The Heat is On”.  Especially work these problems — they’re not difficult, but they have lots of parts to them and you need to keep all of the info contained where it belongs!

March 13

Pi = 3.14.

Today’s date 3/14, which means it is “Pie Day.”  Just FYI.

Text next week on acids/bases.  Come early; Mr. Mealey will stop you at noon even if you’re not finished.

Review questions are due.  Ask me by Friday if you want the answers.

Write your lab report for the titration lab.

 

March 6

Our next chapter is about acids and bases.  Please read Chapter 11 and prepare for a quiz next time on general knowledge.

No labs are due, but we’ll do the big titration lab next time, so it will help for you to read it so that you have an idea of what you’re going to do.

February 28

Test next week on Chapter 10.  Be sure you know all of the gas equations from memory, and the value for “R”.

Since I can only allow you one hour of class time for the exam, you are welcome to arrive anytime after 10 a.m. to have extra time to finish.

Your lab report is due…I think it’s 10.4?

February 21

Begin learning about gasses in Chapter 10.  You’ll need to memorize equations, of course, and they will likely be on your QUIZ NEXT WEEK.

Thanks!

February 15 (for the 14th)

Sorry for the late post, in case any of you were wondering!  No power means no posting…so here we go today.

Test next week on Chapter 9, Solutions.  I will collect the review questions and your lab reports — two of them.  I think they are 9.1 and 9.2, but if I’m mistaken, I trust you know which to do.

February 7

We began Chapter 9 today, which is titled “Solutions.”  Please read it and begin to learn the concepts and the equations.

You finished lab 9.2, so I’d like to have that report next time.

January 31

Your exam for Chapter 8, Still More on Stoichiometry, is next week.  Please answer Review Questions 1-4, 7, 10, 11, 17, 18.

When you study, pay particular attention to the polyatomic ions and the molecules they form; also determining empirical formulas of metal oxides (we did one in class today – see Example 8.3 on page 236).

Please write your lab report for Lab 8.1.

Finally, you are always welcome to show up early and have more time to take the exam.

January 24

Read Chapter 8 this week, “Still More on Stoichiometry.”

Memorize the list of polyatomic ions (just the ones in bold type).

Quiz next week.

January 17

Eventually, stoichiometry will come (more) easily to you than it does now (which is kinda like saying that eventually you’ll have a college degree, three kids and a hamster).  Ahem.

Test next week, and it will be difficult.  You must be able to solve the two types of stoichiometry problems we’ve seen here — how many moles? and how many grams?

Study, practice, and practice some more.  Remember that an effective method of understanding how to solve problems is to work them, check your answers, throw your paper away, and then do the same process again the next day.

Complete the review questions at the end of the chapter.  Email me if you’d like the answers.

As for your lab reports, you are welcome to take an extra week on those if you need more time on problem solving…but i will also accept them next week.

Lastly, please understand that when solving a stoichiometry problem, you really must write down all of your steps and label them properly.  We will deduct points for not showing your work.

Lastly lastly, you’re welcome to start the test early next week.  Show up any time after 10:30 a.m. and have an extra hour or so.

January 10

Stoichiometry is a doozy of a concept, and I know it will take you a few weeks of reading and practice to understand how to solve the equations.

Best way to learn this chapter is to read it and study the example problems as you read.  When you practice the equations, notice the steps you will always take —

  1. Always write down “what you have” and make it a fraction FIRST.
  2. You will almost always have to determine the amu of the element and/or molecule before you do any algebra.
  3. Check your answers as you go.  Even if you “don’t understand what you’re doing”, you can learn the process of how to solve these problems, and they’ll get easier as you go.

Read Chapter 7 this week, and also write your lab report for Lab 7.1

November 15

Next week you’ll take the test for Chapter 6, Physical and Chemical Changes.  The big deals here are —

  1. Balancing equations
  2. Recognizing the different types of equations and being able to write them correctly (formation, decomposition, complete combustion, incomplete combustion, single displacement, double displacement)

And, please write your lab report for Lab 6.1.

Answers to review questions are due for homework.

Also, your only job next week is to take the exam.  I’ll excuse you afterwards; expect to be “free” by noon.  Yay!

November 8

Focus your energies on prepping for the Chapter 5 test.  I will ask you to list the homonuclear diatomic molecules by writing them correctly, and I will also ask you to name the five geometric shapes of covalent molecules, along with their bond angles.

Otherwise, study the review questions, which are due.

We’ll come right back to balancing equations next week, after the test.

November 1

Chapter 5, “Covalent Molecules and Molecular Geometry” is our chapter these next two weeks.

Read the chapter, answer the CC questions as you go, practice drawing Lewis structures for covalent molecules, and memorize the homonuclear diatomic molecules.

Write a lab report for Lab 5.1, “Bending Water.”

Prepare for a quiz next week on general information presented in this chapter.

October 25

Study for your Chapter 4 test, making sure you can write electron configurations and also write formulas for ionic compounds.

The review questions are due; contact me if you would like me to send the answers to you.

October 18

We began the next chapter this week, Chapter 4 on the “Modern View of Atoms and their Chemistry.”  Please read the chapter and begin to absorb it.

Your quiz next week will involve writing electron configurations and Lewis structures.

Thank you!

October 11

We finished Chapter 3, “Making Sense of Atoms and Elements” today, which means that you have acquired sense of them?  Eh?

Reread the chapter, answer the review questions for homework, and study so that you can do well on your Chapter 3 exam next week.

Also, please write the lab report for the flame test lab.

October 4

Today we tested on Chapter 2 and started Chapter 3.  Our new chapter is all about “Making Sense of Atoms and Elements”, which means you will be establishing foundational knowledge of the Periodic Table of Elements, the information contained in each element’s “box”, and (oddly) the relationship between wavelength, frequency, and speed of light.

Please read Chapter 3 and expect a quiz on information in the CC questions next week.

It is always a good idea to answer those CC questions as you read, and also to work the example problems on your own (those are in the yellow/orange boxes within the chapter).

Next week we shall conduct Experiment 3.2.  Please read it so that you know what to expect, although I may conduct it a bit differently than our book does.

September 26

Usually I’m more wordy than I’m about to be, but here’s a quick list —

  1. Test next week. Study the review questions.
  2. Answer the Review Questions and turn them in for credit.
  3. You’re welcome to email me and ask for the answers to the review questions.  I’ll be out of town from Friday morning until Sunday late afternoon, so keep that in mind.
  4. Write lab reports for Experiments 2.2 and 2.3.

Thanks!

September 20

Nice work on your Chapter 1 test today, everybody.  As we progress through the course, you will learn to be more careful with those little details — sig figs, attaching units, etc. — because they will become second nature.

Read Chapter 2 this week and answer the CC questions as you go.  You do NOT need to turn those in, but next week’s quiz will be based on them.

Please write a lab report for Lab 2.1.  Since water takes such a long time to boil on top of an alcohol burner…you are welcome to “assume” it all boiled away and you were left with salt in the beaker.  Mention this in the “discussion” section of your lab report.

Thank you!  I will be emailing your grade report so that you can see the letter grade for the test.

September 13, 2023

We’ve finished Chapter 1, so we’ll test on it next week.  Do this —

  1. Study.  Reread Chapter 1, making sure you understand the concepts.
  2. Complete the Study Guide questions at the end of the chapter.  Turn these in to me next week.  Your book does not contain the answers to the study guide, but I am happy to provide them to you.  Email me and ask if you want them.
  3. Write your lab report for Lab 1.3

That’s it!  Thank you.

September 6, 2023

Please read Chapter 1, Measurement.  Key concepts of this chapter include significant figures, using scientific notation, density, and how to measure correctly.

Answer the Comprehension Check questions as you go.  Those will help you prepare for the QUIZ next week.

So, to be clear, there is no homework to turn in next time, but you need to read the chapter and prepare for a quiz.

Thanks!

August 28, 2023

Hello High School Chemistry Students,

This page is yours.  Here I will post homework assignments and you will look at them to know what’s due.

Unlike last year, we no longer have an LMS (Learning Management System, aka “Schoology”) so here we are.  I post assignments, you bring them to me in class. Just like that.

Your first assignment is to bring me your signed MIRACLE RANCH WAIVER FORM.  If you’ve already turned this in — I have most of you also in English on Tuesdays — you’re good. It counts for each class as a homework grade.

Otherwise, bring your textbook, a binder with paper, pen/pencil, AND A CALCULATOR, and I’ll see you on Wednesday, September 6, promptly at 11:00 a.m.

Mrs. B