21 мар. 2018 г. · No. Explanation: Elements are pure substances BUT they can exist as isotopes which are different forms of the same atom. |
Composition of Elements: The compound that is represented by different ratios of the elements, then the compound is known as having variable composition. |
In Mixtures and Pure Substances. A mixture is a substance with a variable composition, meaning that it is composed of molecules or atoms of differing types. |
7 апр. 2021 г. · In chemistry, a chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be ... What is the difference between 'uniformly mixed' and 'variable ... Why do elements have variable valency? - Quora Why do transition metals show variable valencies ... - Quora Does a homogenous mixture have a definite composition? Другие результаты с сайта www.quora.com |
A mixture can have variable composition, depending on the proportions of the mixed substances. A pure substance is a form of matter with a uniform composition ... |
6 нояб. 2023 г. · Multiple choice question. A compound is a substance in which the atoms of two or more elements are physically combined in variable proportions. |
15 февр. 2023 г. · Elements have a number of properties that are unique ... can have variable composition, meaning the proportion of the components can vary. |
Match the following:i Can have variable composition of constituent elements A Compound ii 1|c| is new substance formed due to reaction of two constituent ... |
Оценка 5,0 (4) ... Compounds, but not elements, can have a variable composition. false. Element, compound, or mixture : 1 substance present, 3 elements present. compound. Element ... |
A chemical element is a chemical substance whose atoms all have the same number of protons. The number of protons is called the atomic number of that element. List · Discovery of chemical... · Naming · Abundance of the chemical... |
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