Q.7 Differentiate between element and compound
Answers
Answer:
Element :
(1) - Type of pure substances made up of similar type of atoms. Example -Oxygen Gas
(2) - It cannot be broken into two or more substances by physical and chemical means.
Compound :
(1) - Type of pure substances made up of dissimilar atoms. Example -Water
(2) - It can be seperated into two or more substances by chemical means
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Answer:
ELEMENTS -
It consists of only one kinds of atoms.
Element cannot be broken into two or
more simpler substances by physical or
chemical means.
An element is a pure chemical
substance made of same type of atom.
An element is represented using
symbols.
An atom is the smallest unit that
shows all the properties of an element.
For example, an atom of iron shows all
the properties of that metal.
COMPOUNDS -
It consists of two or more elements
that are chemically combined in a fixed
proportion.
The components of a compound
cannot be separated by chemical and
electrochemical methods.
A compound contains atoms of
different elements chemically combined in a fixed proportion.
The components of a compound
cannot be separated by chemical and
electrochemical methods.
A compound contains atoms of
different elements chemically combined
together in a fixed ratio.
A compound is represented using a
formula.
A compound is made up of the same
type of molecules. For example, water
contains only molecules of water.
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