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Answers
Answer:
6 number answer.
Explanation:
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1. Elements are the simplest complete chemical substances. Each element corresponds to a single entry on the periodic table. An element is a material that consists of a single type of atom. Each atom type contains the same number of protons.
Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.
Elements cannot be divided into smaller units without large amounts of energy. Compounds, on the other hand, can have their bonds broken with practical amounts of energy, such as the heat from a fire.
Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated back into their original components.
2.
We can differentiate the two groups on basis of physical and chemical properties.
Difference on the basis of physical properties :-
METALS
All metals are solid at room temperature except mercury, which is a liquid at room temperature.
All metals are lustrous.
Metals have high densities except lithium, soduim and potassium.
Metals are malleable.
Metals are ductile.
They are good conductors of heat and electricity.
They have high melting point.
NON-METALS
Non-metals exists as solid, liquid and gas.
silicon is a solid, bromine is a liquid and oxygen is a gas.
Non-metals are non-lustrous.
They have low density.
They are non-malleable.
They are non-ductile.
They are poor conductors of heat and electricity.
They have low melting and boiling point.
What is the difference between metal and nonmetal?
Master's certification in external aerodynamics simulations.
We can differentiate the two groups on basis of physical and chemical properties.
Difference on the basis of chemical properties :-
METALS
Metals react with non-metals to form ionic compounds.
Example- 2Na + Cl₂ → 2NaCl
Metals combine with oxygen to form metal oxides which are basic in nature.
Example- 2Mg + O₂ → 2MgO
NON-METALS
Non-metals form covalent bonds.
Non-metals dissolve in water to form acidic solutions.
Example- SO₂ + H₂O → H₂SO₃
3. Volume can be calculated from weight and density using the formula,volume=weight/density.It can be measured by using jars by measuring the volume of fluid displaced by the stone(put stone into a fully filled jar with water. Measure the volme of water overflown gives the volume of stone).
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