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Higher chemistry

ThinkinboutuXO

Tips for higher chemistry please? I struggle sm with it and I need an A!! 🥲

Reply 1

kezzagla1

Original post by hussienmanaf6

Tips for higher chemistry please? I struggle sm with it and I need an A!! 🥲

Literally do lots and lots of past paper questions and take the ones that u got wrong to you’re teacher, just so much reflection is involved when understanding where you went wrong and what to do for next time, go though your prelim and just keep working on your weaker areas. Flashcards are super helpful with definitions, and borrow a class textbook for calculation questions and just keep practicing, all my best to you, good luck!

Reply 2

1582

Volunteer Section Leader, Clearing and Applications Advisor

What is it that you're struggling with in particular?

Reply 3

ThinkinboutuXO

Original post by 1582

What is it that you're struggling with in particular?

right now would be he symmetry stuff in intermolecular forces its just messing with my head

Reply 4

coffeecroissant

If you mean using symmetry to determine whether a molecule is polar, then here’s a good trick to use: first, identify which molecules are δ+ and δ- through electronegativity differences [higher electronegativity of elements in a bond is δ-]. Once you’ve done that and labeled each atom, the molecule is polar if you can draw a straight line seperating all δ+ and δ-. For example, while carbon dioxide has polar bonds, it is not a polar molecule, since it is structured O = C = O which turns into
δ- = δ+ = δ- and you can’t draw a line separating δ+ and δ-. Water is polar because you can draw such a line (I’ll allow you to try that for yourself).