Question

5 difference between element,compound and mixtures in tabular form

Answer 1

All matter can be classified as mixtures, elements and compounds.

Mixtures – two or more substances that are not chemically combined with each other and can be separated by physical means. The substances in a mixture retain their individual properties. Mixtures can be of homogeneous (existing in a single phase) and heterogeneous (existing in more than one phases) type. Solutions are a special kind of mixture where one substance dissolves in another.

Elements – simplest form of pure substance. They cannot be broken into anything else by physical or chemical means.

Compounds – pure substances that are the unions of two or more elements. They can be broken into simpler substances by chemical means. Compounds can be separated by chemical reactions into their elements and elements can be combined chemically to form compounds.

The difference among these three types of matter can be summarized in the following table:

                            Element           Compound           Mixture

                           -------------    ----------------       -----------------

Phase:                  single             single             single or multiple

Properties of      

Components:       retained            not retained     retained

Composition:       uniform     definite proportion   non-definite ratio

                                           of components

Separation by      

physical means:   single component         No            Yes