Topic 2: Chemical Bonding and Structure 5.0 / 5 based on 3 ratings ? ChemistryBonding & shapesASEdexcel Created by: LouiseGCreated on: 16-04-16 11:42 What is a pi-bond? The sideways overlap of two p-orbitals 1 of 9 Electronegativity.... ...is the ability of an atom to attract a bonding pair of electrons 2 of 9 What is a dative covalent bond? A bond formed from the overlap of an empty orbital and a lone pair 3 of 9 What intermolecular force acts between all molecules? London Forces 4 of 9 What is the most significant reason why HF has a higher boiling point than HCl? HF can form strong hydrogen bonds between molecules, HCl cannot 5 of 9 In order for a substance to dissolve... ...the attractions formed between the solute and solvent need to be stronger than the original bonds 6 of 9 It doesn't conduct when solid, it has a high melting point, it is... a giant ionic OR giant covalent structure 7 of 9 If a molecule has two bonded and two lone pairs; it's ... v-shaped 8 of 9 What causes ice to be less dense than liquid water? Hydrogen bonds between molecules in ice create an open and spaced "cage" structure, which breaks down on melting 9 of 9
Comments
Report