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Why is air a mixture and not a compound give 4 point to justify your answers?
Wiki User
∙ 8y ago
I'll not give you a whole answer - as this is obviously a homework question !... However - a compound - is the joining of two or more elements to form one molecule. For example - common table salt is a compound of sodium and chlorine. The chemical name for salt is Sodium Chloride. Pure air, however is composed of individual elements (oxygen, nitrogen, hydrogen, argon, carbon and other 'trace' elements) which are 'free-flowing' - in that the individual atoms are not combined into a single atom of air.
Wiki User
∙ 8y ago
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How is a compound similar to a homeogeneous mixture?
In the strictest chemical sense a compound is the term for a molecule, a compound of elements. Sugar, salt and water are examples of compounds. As such compounds have the qualities of consistent color, well defined physical properties (such as melting or boiling point). Compounds cannot be separated because they are of a uniform structure. Homogeneous mixtures are similar to compounds only in appearance. Thus a mixture of sugar and salt may not be discernible from samples of either simply by sight. A better example would be to consider a solution of salt and water. Solutions are also homogeneous mixtures. A saline solution is visually indiscernible from water. In a broader definition, any mixture can be referred to as a compound- if the mixture has a consistent appearance, the two are the same.
What information can be obtained from the melting point of a compound as an industrial chemist?
purity of a compound
Is it possible for a polar covalent compound to have a lower melting point than a non-polar covalent compound?
It is not possible for the polar covalent compound to have a lower melting point than the non-polar covalent compound because they have ionic bonds.
What are the applications of finding the melting point of an organic compound?
To check the purity of the organic compound.
How do you tell if a compound is a salt?
Mixture
How melting and boiling point decide that it is a mixture or compound?
i really dont know
How is the melting of an impure compound expected to change with recrystallization?
The melting point of an impure compound will become closer to that of the actual melting point of the pure substance with recrystallization of your mixture.
Why urea has sharp melting point but glass does not?
Urea is a pure crystalline compound so has a sharp melting point while glass is an amorphous mixture.
What is table salt mixture compound or solution?
You did not mention a mixture of 'what' and table salt. On the chance that you meant, "Water", then the compound called, "salt" is in solution with water up to the saturation point. After that, any added salt will simply fall to the bottom of the container, and not go into solution.
What is the boiling point of opal?
Opal is not a compound but a mixture, and so, its boiling point will depend on its exact composition. However, opals are mainly made of silica, whose boiling point is 2230 deg C.
Is ether a basic compound?
Ether is indeed a pure substance rather than a mixture. The boiling point of ether is 94.28 degrees Fahrenheit or 34.6 degrees Celsius.
Why are the melting and boiling points of air never given?
Air is a mixture; it doesn't have a melting or boiling point. It has a mixture of carbon dioxide, ozone, oxygen, nitrogen, helium, etc. look up those gases separately and you will get answers.
What gas condense first?
When cooling down (and/or compressing) a gas mixture, the first condensing gas has the highest boiling (= condensation) point temperature, in other words the least volatile compound.
How do impurities affect the melting point of compound?
effects that impurities have on melting point iof a pre compound. I learned that it is because the impurities "defect" the crystal lattice of the compound. A pure compound is a structure of high molecular symmetry. An impurity is rather assymetrical, or is a poorly organized structure. If the impurites are present with the pure compound, the melting point will deviate because melting point is also dependent on the high symmetry and organization of molecular structures,
How is a compound similar to a homeogeneous mixture?
In the strictest chemical sense a compound is the term for a molecule, a compound of elements. Sugar, salt and water are examples of compounds. As such compounds have the qualities of consistent color, well defined physical properties (such as melting or boiling point). Compounds cannot be separated because they are of a uniform structure. Homogeneous mixtures are similar to compounds only in appearance. Thus a mixture of sugar and salt may not be discernible from samples of either simply by sight. A better example would be to consider a solution of salt and water. Solutions are also homogeneous mixtures. A saline solution is visually indiscernible from water. In a broader definition, any mixture can be referred to as a compound- if the mixture has a consistent appearance, the two are the same.
What is a compound word for the highest point of a fir tree?
A compound word for the highest point of any tree is treetop.
What is the significance of eutectic point?
The eutectic point of a mixture is defined as the temperature at which a eutectic mixture freezes or melts. A eutectic mixture is a mixture that melts and solidifies at a single temperature that is lower than the melting points of the individual constituents.
