what is difference between molecule of elements ana compounds
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When two or more reactants combine to form a single product is known as combination reaction
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ELEMENT:
elements are pure substances. they are the basic form of matter that cannot be broken down into simpler substances... this means that they contain one type of particle
eg : like in iron as a pure substance you will only find iron(fe) particles , you will not find any other particles like of copper(Cu) etc...so this iron will be called an element.
COMPOUND:
Compound is also called a pure substance. it is a substance composed of two or more elements, chemically combined with one another in fixed proportion...this means that two elements chemically combined (combined with a chemical bond) are together called compounds
eg : like in water (H2O)as a pure substance, two elements hydrogen and oxygen are chemically combined in fixed proportion (1:8) with a chemical bond...so water will be called a pure substance if it contains only H2O particles not any other particle
elements are pure substances. they are the basic form of matter that cannot be broken down into simpler substances... this means that they contain one type of particle
eg : like in iron as a pure substance you will only find iron(fe) particles , you will not find any other particles like of copper(Cu) etc...so this iron will be called an element.
COMPOUND:
Compound is also called a pure substance. it is a substance composed of two or more elements, chemically combined with one another in fixed proportion...this means that two elements chemically combined (combined with a chemical bond) are together called compounds
eg : like in water (H2O)as a pure substance, two elements hydrogen and oxygen are chemically combined in fixed proportion (1:8) with a chemical bond...so water will be called a pure substance if it contains only H2O particles not any other particle
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