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Chemistry has existed under various names since ancient times. It has evolved, and now chemistry encompasses various areas of specialisation, or subdisciplines, that continue to increase in number and interrelate to create further interdisciplinary fields of study.
2 de mai. de 2024 · Chemistry, the science of the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these processes.
A Química é o estudo da matéria e das mudanças pelas quais ela passa. Aqui, você pode pesquisar vídeos, artigos e exercícios de química por tópico. Mantemos os conteúdos atualizados para que, ao longo do tempo, você possa encontrar aqui material novo ou aperfeiçoado.
The chemistry archive contains legacy chemistry content, and is not being updated with new content. Exercises and mastery mechanics will be removed from the chemistry archive in July 2024. For our most up-to-date, mastery-enabled courses, check out high school chemistry and AP Chemistry!
21 de abr. de 2020 · Chemical pode ser tanto substantivo quanto adjetivo. Como substantivo, significa “substância química” ou “produto químico”. Como adjetivo, significa “químico” também, mas sempre acompanhando um substantivo. Por exemplo: chemical industry (“indústria química”) e chemical formula (“fórmula química”).
Chemistry is the study of matter—what it consists of, what its properties are, and how it changes. Being able to describe the ingredients in a cake and how they change when the cake is baked is called chemistry. Matter is anything that has mass and takes up space—that is, anything that is physically real.
Chemistry. Dealing with reality’s most basic elements, from particles to atoms to molecules, chemistry is also known as the central science. Sitting between biology and physics, the field of ...
