Week 1 Reflective Post

This week in S/G Chem 2, we covered topics such as the differences between molecules and atoms, among other concepts such as why the equation of water is H2O.  We also touched on qualities and characteristics of mixtures, compounds, pure elements, and more.  All of these concepts we touched on are related to each other in one way or another.  For example, compounds and mixtures all contain atoms or molecules.  Another example connection example is, the formula for H2O is derived from observing how atoms act in a closed environment.  Avogadro's hypothesis was also another very important concept we covered.  Basically, what this hypothesis states, is gases at the same temperature and pressure, react in simple integer volume ratios.  Avogadro's hypothesis is extremely important as it has made it possible to deduce the formulas of compounds when these gases react.
A great example of how gases react is in this video:

Vdeo from class: Gases and How They Combine

To help us visualize how gases react, we also did a worksheet where we had a certain number of atoms per element, and we had to apply our knowledge of Avogadro's hypothesis to form compounds of these atoms.  Then, from there, we deduced the formula of the compound.  Both of these sources really helped me understand and relate to Avogadro's hypothesis because I had to use my knowledge of the hypothesis to understand and complete them.
Classification of Matter Worksheet:

U4 - Worksheet 2 - Avogadro’s Hypothesis

Another great worksheet we did was the classification of matter worksheet.  This was a great refresher on the differences between atoms, molecules, mixtures, and compounds.  It was also a great visual as it used shapes to show how to classify different types of matter.  This really helped me because I learn really well visually.  After completing this worksheet I was able to better understand how matter is composited, and the different characteristics each form/ type of matter has.  One last worksheet we did was Unit 4 Worksheet 1.  This expanded on our knowledge of atoms and molecules, and the other types of matter they can compose.  We completed several problems that had us define if certain visuals portrayed certain classifications of matter.  I'm glad we did this other worksheet as well because it answered questions I had such as "Can pure substances also be classified as compounds?"  Even though these worksheets were excellent help, I still feel that I should practice these classifications a bit more so I don't commit any dumb mistakes.
Overall, this was a great refresher into Chemistry unit.  I recovered knowledge on the formation of matter and how it can be applied to real life.  I also learned a couple things I didn't understand fully in S/G Chem 1, such as Avogadro's Hypothesis.  Something I really like about Dr. Finnan's class is how we whiteboard everything.  I find that a strategy like this is really great for learning because it shows how other groups interpreted knowledge and what they think of a subject.  It's a great way to collaborate with your peers and reflect and connect on what each other has learned.  Along with this, if you didn't get an answer correct, you can see the correct answer and how everyone else go to their answer, which in my opinion is extremely helpful.  I really like this class and I'm excited to venture into the future units.