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Вопрос		Ответ
mixture начать обучение		is a combination of two or more substances
pure substance начать обучение		is a uniform substance that has a fixed and definite composition
compound начать обучение		a pure substance that can be decomposed into simpler substances
element начать обучение		pure substance that can’t be broken down into simpler substances
periodic chart/table начать обучение		a table which presents the symbol, atomic weight, atomic number for each elements
atomic number начать обучение		the number of protons in the nucleus of an atom which is the same as the number of electrons on the electron shells
atomic weight начать обучение		a ratio between the mass of one atom of an element and twelfth of an atom of carbon
matter начать обучение		any substance that has mass and occupies a given/specific volume
solute начать обучение		substance that is dissolved
solvent начать обучение		the substance that dissolves the solute
aqueous solution начать обучение		a solution prepared with the use of water as solvent

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