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Science Test Space
Class 8
Matter around us
Textbook questions
15.
Answer in detail I
Question:
5
m.
Write the differences between elements and compounds and give an example for each.
Elements:
Contains more than one kind of atoms.
Contains only three kind of atoms.
Contains only one kind of atoms.
Contains only two kind of atoms.
It is not a pure molecule.
It is a pure molecule.
It is a pure substance.
It is not a pure substance.
Molecule cannot be broken down
Compounds can be broken down
Elements cannot be broken down
Molecules can be broken down
Compounds have definite physical and chemical properties.
Molecules have definite physical and chemical properties.
Substances have definite physical and chemical properties.
Elements have definite physical and chemical properties.
Examples for elements: oxygen, hydrogen, sodium.
Examples for compounds, water, cane sugar.
Examples for chemicals water, cane sugar.
Examples for atoms oxygen, hydrogen, sodium.
Compounds:
Contains only one kind of atoms.
Contains more than one kind of atoms.
Contains only three kind of atoms.
Contains only two kind of atoms.
It is not a pure molecule.
It is not a pure substance.
It is a pure substance.
It is a pure molecule.
Elements cannot be broken down
Molecules can be broken down
Molecule cannot be broken down
Compounds can be broken down
Substances have definite physical and chemical properties.
Elements have definite physical and chemical properties.
Compounds have definite physical and chemical properties.
Molecules have definite physical and chemical properties.
Examples for atoms oxygen, hydrogen, sodium.
Examples for elements: oxygen, hydrogen, sodium.
Examples for compounds, water, cane sugar.
Examples for chemicals water, cane sugar.
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