Use these classroom ideas, tips and resources to effectively teach this challenging topic Molecules are one of the key particles in chemistry. An understanding of molecules helps us explain much of ...

Knowledge of intermolecular forces (IMFs) is fundamental to comprehending chemical and biological systems and their transformations at a particulate level. Including instruction on IMFs in the high ...

Intermolecular forces explained using simple animations. Use of these forces to explain physical properties of covalent substances. The boiling points and solubilities of a range of compounds, ...

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Boiling point is the temperature at which a liquid's vapour pressure equals the external pressure, causing it to change into a gas. Melting point is the temperature at which a solid becomes a liquid.

docx, 173.41 KB pdf, 107.62 KB docx, 189.81 KB pdf, 116.76 KB A complete, ready-to-teach lesson for Unit 1 (Principles and Applications of Science I), chemistry section: van der Waals forces and ...

The properties of elements and compounds can be explained by considering the different types of bonding present inside the molecules. All ionic compounds have a high melting point and boiling point.

The longest hydrocarbons have very high boiling points. They leave the column as a hot liquid called bitumen. Shorter hydrocarbon molecules have weaker intermolecular forces and lower boiling points.