Hi! My name is T G and I teach A Level H2 Chemistry in Singapore.
I started this channel in 2021 - armed with a crazy vision that Singapore’s notoriously difficult 'A Level H2 Chemistry' can be completely self-taught & learnt through RU-vid.
But as my channel grew, more and more parents & students reached out to me for tutoring and for 3+ years and counting, I've helped many students overcome their limits and achieve the coveted results that they deserve.
You can reach out to me at: gradefruitacademy@gmail.com
What is the most stressing right now is that I'm failing Chemistry due to my teacher's lack of teaching the lectures. He doesn't hand out any practice assignments whatsoever and gives us broad quizzes that don't give in-depth understanding. I passed Biology and Physical Science because my teacher gave practice assignments each week, and it built up my knowledge well for the up-coming tests. But with this teacher that is not possible. The class should be easy if the teacher conducts a lecture well in order for you to process is it into studying in your own time. I must do both with this class, which is more difficult since I am slow. I don't want to place the blame too much on the teacher though since I should work harder to maintain my grade from having a bad teacher, but there is a pattern that many had failed his class.
my advice is pinpoint and reflect on where and why you went wrong, from there, reverse engineer what you need to fix (isit a content problem, understanding, misconception problem etc) and then take it a step at a time. jiayou!!
I spend so much time studying subjects like phy, chem and math only to get the average score and spend less than half an hour for english and get the top mark. Like, i do not get why the difference is sooooo huge, i mean, i spent soooo much of my time and efforts for other subjects...why is that not making a difference?
Sometimes its not about how much you study but how close your answers are to what your teachers/examiners are looking for (study smart not just hard). Perhaps you are not practicing and getting feedback enough?
The way I think of it is, I count the σ bonds and the unshared pairs of electrons if applicable ( for example O in H2O has 2 σ bonds between 2H and O and 2 unshared pairs of electrons so 4 hybrid orbitals and S1+P3=4
Correct me if I'm wrong, but isn't ozone a polar molecule? The correct answer for example 1 should be: Both oxygen and ozone have simple covalent structures. Weaker instantaneous dipole-induced dipole interactions exists between oxygen molecules while stronger permanent dipole-permanent dipole interaction exist between ozone molecules. Hence, more energy is required to overcome the stronger intermolecular forces of attraction in ozone than in oxygen. Thus the boiling point of oxygen is lower than that of ozone.
i am in my as levels and i am literally not understanding anything at all it feels like its tooo much for me and i barely have 5 months left for my boards i dont know what to do
