SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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particles of more than one type of atom
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particles of the same type of atom
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a mixture of two or more substances that can be physically separated
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None of the above
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Detailed explanation-1: -Elements and compounds are both examples of pure substances. Compounds are substances that are made up of more than one type of atom. Elements are the simplest substances made up of only one type of atom.
Detailed explanation-2: -Compound. A compound is a pure chemical substance, but it is made from more than one type of atom, chemically bonded together. All pure substances are either elements or compounds.
Detailed explanation-3: -Compounds: A pure substance containing two or more kinds of atoms The atoms are chemically combined in some way. Often times (but not always) they come together to form groups of atoms called molecules. A compound is always homogeneous (uniform). Compounds cannot be separated by physical means.
Detailed explanation-4: -Pure substances are substances that are made up of only one kind of particle and have a fixed or constant structure. Pure substances are further classified as elements and compounds. An element is a substance that consists of only one type or kind of atom.
Detailed explanation-5: -Compounds are made of only one kind of molecule. The molecule is made up of two or more kinds of atoms. There is no physical change that can separate the compounds into more than one kind of substance. This makes a compound a pure substance.