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13 lis 2022 · The science of chemistry developed from observations made about the nature and behavior of different kinds of matter, which we refer to collectively as the properties of matter. The properties we refer to in this lesson are all macroscopic properties: those that can be observed in bulk matter.
- Energy, Heat, and Temperature
Learning Objectives. Explain the difference between kinetic...
- Distillation
Chętnie wyświetlilibyśmy opis, ale witryna, którą oglądasz,...
- 1.1: Chemistry in Context
Chemists study and describe the behavior of matter and...
- Energy, Heat, and Temperature
The Standard Model explains how the basic building blocks of matter interact, governed by four fundamental forces. The theories and discoveries of thousands of physicists since the 1930s have resulted in a remarkable insight into the fundamental structure of matter: everything in the universe is found to be made from a few basic building blocks ...
In addition, Micro- and Macro-Properties of Solids provides data on new materials such as rare-earth metals, semiconductors, ferroelectrics, mixed-valence compounds, superionic conductors, optical and optoelectronic materials and biomaterials.
Most macroscopic properties of a substance are a consequence of how the constituent particles are arranged and held together. For example, graphite and diamond both contain only carbon atoms. In one substance they are held together in sheets or layers so they slide easily over one another making it useful as a dry lubricant.
27 paź 2022 · Chemists study and describe the behavior of matter and energy in three different domains: macroscopic, microscopic, and symbolic. These domains provide different ways of considering and describing chemical behavior.
29 sie 2023 · Use physical and chemical properties, including phase, to describe matter. Distinguish between physical and chemical changes. Identify a sample of matter as an element, a compound, or a mixture (homogeneous/heterogeneous).
Physical properties, like viscosity and surface tension (in liquids) and hardness and malleability (in solids) depend on the strength of interparticle forces in the substance. Gases have particles that are separated from each other and free to move, and the forces between particles are minimal.
