Category: Chemistry 2018 – 2019

[pictures coming soon]

I really like this round chemistry class because the topics are really cool to learn about and the worksheet that we have to complete are very interesting. My favourite part of the class is when we learn about lewis structure. I always wanted to understand what those bond, letter, and dots mean. Now I am able to look at a compound element and write a lewis structure. I can even identify whether it’s non-polar or polar and the name of the bond. I also think it’s pretty fascinating to be able to name the covalent bonds because their names are very long and technical. For the last 2 weeks of class, we got introduced to the limiting reactant and excess reactant. This is also my favourite topic because I learn how to balance the chemical equation and how to calculate limiting reactant. To find the limiting reactant, it is actually taking a lot of steps and calculations of the molecules. That’s what make it so fun for me because it require a lot of concentration and I just really like the way the compounds are written. I hope to learn more about chemistry and although it might be complicated to understand, I think I will try my best to learn and help my classmates.

Starting with the new school year, we got a new teacher to teach us about chemistry! I really love chemistry because it is very interesting to study how the chemicals works! In the first round of the class, we covered 2 mains units called the “Scientific Method” and the “Matter, Atoms, and the Periodic Table” topics. In each unit, there were many sub-topics that we have to learned about such as Emission, Atom, Mole, Electron Figuration, and many more! We got to do a lab called Flame Test. This lab was fun because we got to do an experiment with flame and flame is always interesting in chemistry. In the lab, we make sure that everyone wear safety glasses, gloves, sneakers, and their lab code. During the flame test, we want to see the changes in flame’s colour when we put the different type of Chlorides onto it. When we put the copper chloride onto the flame, it changed the flame’s colour from orange to green and blue and it was so beautiful. The flame was kind of spiky. After the experiment, we measured the wavelength of light of each flame’s colour using the colour wavelength table. There were error during experiment such as that we do not accurately identify the flame’s colour using our eyes. But from this lab, we learned that the higher the energy level, the higher its wavelength of light.