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 sprawdza 8 zadań wzorowanych na arkuszach IB z lat 2022–2025.
Zadania sprawdzające tę umiejętność: 8 Otwórz w wyszukiwarce z filtrami
Zadanie 7
Which molecule has the largest net dipole moment? A. SiF4 B. CS2 C. H2S D. H2O
Zadanie 10
Which bond is the most polar? A. C−S B. C−Br C. C−Cl D. C−O
Zadanie 6a
Hydrogen sulfide, H2S, is removed from natural gas in the Claus process. Part of the hydrogen sulfide is burned in air to form sulfur dioxide, which then reacts with the remaining hydrogen sulfide to form sulfur. (i) Determine the enthalpy change, in…
Zadanie 3f
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) Carbon-halogen bonds are polar, which…
Zadanie 11
Which molecule is the most polar? A. CO2 B. CCl4 C. H2S D. H2O
Zadanie 2d
The N–H bonds in compound P and the O–H bonds in water are both polar. State, giving a reason, whether nitrogen or oxygen is the more electronegative element.
- Materiał graficzny
Zadanie 11
Sulfur dioxide, SO2, has sulfur as the central atom. The electronegativity of sulfur is 2.6 and that of oxygen is 3.4. Which row describes the polarity of the bonds and of the molecule correctly? A. S=O bonds: O is δ − and S is δ +;…
- Materiał graficzny