Zadanie 1b
Outline why solid tin(IV) iodide is classified as a polar covalent compound. Use sections 9 and 17 of the data booklet.
Bond polarity and electronegativity
Use electronegativity values from the data booklet to decide whether a covalent bond is non-polar or polar, show the bond dipole with partial charges or a vector arrow, and compare the polarity of different bonds.
Tę umiejętność sprawdzają 4 zadania wzorowane na arkuszach IB z lat 2022–2025.
Zadania sprawdzające tę umiejętność: 4 Otwórz w wyszukiwarce z filtrami
Zadanie 7
Which molecule has the largest net dipole moment? A. SiF4 B. CS2 C. H2S D. H2O
Zadanie 6a
Hydrogen sulfide, H2S, is removed from natural gas by burning it in air to form sulfur dioxide. (i) Determine the standard enthalpy change of reaction, ΔH⊖, in kJ mol−1, for 2 H2S(g) + 3 O2(g) → 2 SO2(g) + 2 H2O(l),…
- Tabela do uzupełnienia
Zadanie 5d
Bromoethane can be converted into ethanol: CH3CH2Br + HO− → CH3CH2OH + Br− (i) Identify the type of reaction. (ii) Outline what must be true of a collision between reacting particles for a reaction to occur. (iii) Explain the mechanism of this…