distinguish between... compounds and mixtures
Answers
Answered by
2
A compound is formed when two or more elements chemically combine together.
A mixture is a combination of two or more substances which are not chemically the same.
A mixture is a combination of two or more substances which are not chemically the same.
Answered by
1
Compounds:
A compound is formed when two or more elements chemically combine together.The elements react chemically and form chemical bonds between the atoms of the elements. In compounds the constituent elements are always present in fixed proportions and therefore a compound has a definite chemical composition.
The components of a compound lose their individual properties and the properties of a compound are different from their individual components. For example, Iron is an element which is metallic in nature and has magnetic properties and oxygen is an element which is a colorless odorless gas. When iron rusts, it reacts with atmospheric oxygen to form the compound iron oxide.
Iron oxide has different properties from those of iron and sulphur. Iron oxide is a reddish brown colored solid and is non-magnetic in nature.The components of a compound may be separated only by chemical means. Compounds are homogeneous in nature and have fixed melting points and boiling points.
Examples: water (H2O), sodium chloride (NaCl), ammonia (NH3), ethanol (C2H5OH)

Now, what are mixtures and how they are classified?
Mixtures:
A mixture is a combination of two or more substances which are not chemically the same. The composition of a mixture is variable. In a mixture, the components are present in any proportion and they can be identified visually within the mixture. In a mixture, the individual components retain their own identities.
For example, when carbon disulphide is added to a mixture of iron and sulphur, sulphur first dissolves and then reappears in its solid state. First add a small amount of CS2 into the mixture of iron filings and sulphur taken in a test tube and shake gently. After shaking the iron filings settle to the bottom of the beaker and sulphur dissolves in CS2 to give a clear yellow solution. Then, pour this clear yellow solution into a china dish and after some time the yellow coloured sulphur powder reappears in the china dish as CS2 evaporates.
The properties of a mixture are the same as the properties of individual compounds. Individual components of a mixture may be separated by physical methods. For example, a magnet can be used to separate iron from a mixture of iron and sulphur.
Mixtures can be homogeneous mixtures or heterogeneous mixtures.
pls mark as brainliest..........
A compound is formed when two or more elements chemically combine together.The elements react chemically and form chemical bonds between the atoms of the elements. In compounds the constituent elements are always present in fixed proportions and therefore a compound has a definite chemical composition.
The components of a compound lose their individual properties and the properties of a compound are different from their individual components. For example, Iron is an element which is metallic in nature and has magnetic properties and oxygen is an element which is a colorless odorless gas. When iron rusts, it reacts with atmospheric oxygen to form the compound iron oxide.
Iron oxide has different properties from those of iron and sulphur. Iron oxide is a reddish brown colored solid and is non-magnetic in nature.The components of a compound may be separated only by chemical means. Compounds are homogeneous in nature and have fixed melting points and boiling points.
Examples: water (H2O), sodium chloride (NaCl), ammonia (NH3), ethanol (C2H5OH)

Now, what are mixtures and how they are classified?
Mixtures:
A mixture is a combination of two or more substances which are not chemically the same. The composition of a mixture is variable. In a mixture, the components are present in any proportion and they can be identified visually within the mixture. In a mixture, the individual components retain their own identities.
For example, when carbon disulphide is added to a mixture of iron and sulphur, sulphur first dissolves and then reappears in its solid state. First add a small amount of CS2 into the mixture of iron filings and sulphur taken in a test tube and shake gently. After shaking the iron filings settle to the bottom of the beaker and sulphur dissolves in CS2 to give a clear yellow solution. Then, pour this clear yellow solution into a china dish and after some time the yellow coloured sulphur powder reappears in the china dish as CS2 evaporates.
The properties of a mixture are the same as the properties of individual compounds. Individual components of a mixture may be separated by physical methods. For example, a magnet can be used to separate iron from a mixture of iron and sulphur.
Mixtures can be homogeneous mixtures or heterogeneous mixtures.
pls mark as brainliest..........
shivanshu14:
thanks
pls mark for umbra and penumbra also
i need it
plz ans me why is shadow of a bird flying high not seen on the earth
yes why not just wait
kkk
For the shadow to fall near you, the bird or plane would have to be close to the line directly from you to the sun. Most of the time, the object isn't close to that line and the shadow falls a few blocks or a few miles away. Also, the higher an object is in the sky, the larger its shadow will be on the ground. And, because of geometric optics, the shadow will be more diffuse when the object is higher in the sky.
[ - ]
[ - ]
pls follow me
for more answers
Similar questions