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midterm review #1
2.1 terms
| Term | Definition |
|---|---|
| polyatomic ion | a charged particle that has two or more atoms held together by covalent bonds. |
| cation | any positively charged atom or group of atoms. |
| viscosity | the property of a fluid that resists the force tending to cause the fluid to flow. |
| dissociation | the reversible resolution or decomposition of a complex substance. |
| absolute zero | the hypothetical point at which all molecular activity ceases. |
| dispersion | the separation of electromagnetic radiation into constituents of different wavelengths |
| sublimation | the act, fact or process of subliming |
| electron dot diagram | diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons. |
| heat of fusion | heat describing the energy for the phase change between a liquid and solid to occur without a change in temperature. |
| colloid | a homogeneous, noncrystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance |