SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Compounds and elements are?
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mixtures
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muffins
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stephen curry
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pure substance
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Explanation:
Detailed explanation-1: -Elements and compounds are pure substances because their composition is always fixed, and their constituents can only be separated using chemical or electrochemical reactions.
Detailed explanation-2: -The statement is true. Elements and compounds are examples of pure substances.
Detailed explanation-3: -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.
Detailed explanation-4: -A chemical substance is a matter that has a definite composition and the same composition throughout. A chemical substance may be either an element or a compound.
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