Difference between mixtures and Compounds

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Re: Difference between mixtures and Compounds

Post by Aneesh Yadav on Thu Sep 10, 2015 5:44 am


Twisted Evil Cool Arrow Idea
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Re: Difference between mixtures and Compounds

Post by VK KUMAR on Wed Sep 09, 2015 9:19 pm

THERE IS AN INFORMATION ON COMPOUNDS AND ELEMENTS!!!!!!!! lol! lol! lol! lol!
compound:

consists of atoms of two or more different elements bound together,
can be broken down into a simpler type of matter (elements) by chemical means (but not by physical means),
has properties that are different from its component elements, and
always contains the same ratio of its component atoms.

a mixture:

consists of two or more different elements and/or compounds physically intermingled,
can be separated into its components by physical means, and
often retains many of the properties of its components.
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Re: Difference between mixtures and Compounds

Post by VK KUMAR on Wed Sep 09, 2015 9:16 pm

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Re: Difference between mixtures and Compounds

Post by Aneesh Yadav on Wed Sep 09, 2015 4:02 pm

imeddy wrote:

Its very interesting!!!!!!!! Cool Razz Twisted Evil What a Face Suspect
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Re: Difference between mixtures and Compounds

Post by imeddy on Wed Sep 09, 2015 8:51 am


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Re: Difference between mixtures and Compounds

Post by SACHIN TENDULKAR on Wed Sep 09, 2015 8:49 am

Azeotropes are mixtures that cannot readily be separated after forming the mixture. why ?
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Re: Difference between mixtures and Compounds

Post by KIRTI on Wed Sep 09, 2015 8:38 am

Mixtures Facts Cool Cool Cool Cool Smile Razz
Mixtures, different from chemical compounds, are a combination of two or more different components that are not chemically combined. Therefore, they retain their original chemical and physical identities when joined.
Interesting Mixtures Facts:
Mixtures can be combined either as solutions, suspensions, or colloids.
Likewise, mixtures can be either homogeneous or heterogeneous.
In a homogeneous mixture, the make up is uniform and every constituent of the mixture has the same properties.
In a heterogeneous mixture, the various components are visible since there are different phases taking place among the parts.
Air would be an example of a homogeneous mixture, while sand and water would be an example of a heterogeneous mixture.
A solution would occur when there is only one phase present in the components, making it a homogeneous mixture.
In this case, a solute (substance) is completely dissolved in another substance, the solvent.
A suspensions would be a heterogeneous mixture with different phases present, and there are solid particles that allow sedimentation or build-up to occur.
Suspensions will eventually allow the solid particles to settle, which can then be redistributed upon mechanical agitation.
A colloid can be either homogeneous or heterogeneous, but the size of the solid particles that are distributed through the other component will indicate its status as a colloid.
Unlike suspensions, the solid state particles in a colloid will not settle, but due to their microscopic size will remain distributed throughout the substance.
The Tyndall effect describes the reasoning behind some colloids appearing translucent, as light is scattered by the solid particles.
Colloids were studied extensively by Scottish scientist Thomas Graham, which led to the fields of study related to interface and colloid science.
Despite the fact that the constituent components are still able to retain their chemical and physical properties when they become a mixture, their properties might be slightly altered as a whole. This means the melting point of the mixture, for example, might be different than the melting points of each component alone.
Many times but not always, a mixture can be physically separated through a process in order to select out the constituent components.
Azeotropes are mixtures that cannot readily be separated after forming the mixture.
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Re: Difference between mixtures and Compounds

Post by Aneesh Yadav on Tue Sep 08, 2015 7:56 pm

Hey guys!!!!!. Here is the difference between mixtures and compounds lol! Basketball Sleep



Compounds

1. Compounds are pure substances.

2. They are made up of two or more elements combined chemically.

3. The constituents of a compound are present in a fixed ratio.

4. Compounds have fixed properties. For example, a particular compound will have fixed temperatures at which it melts and boils.

5. A compound can have properties different from its constituents, as a new substance is formed when the constituents are chemically combined.

6. The constituents of a compound can be separated only by chemical methods.

Mixtures

1. Mixtures are impure substances.

2. They are made up of two or more substances mixed physically.

3. The constituents of a mixture are present in varying ratios.

4. Mixtures do not have fixed properties. Their properties depend on the nature of their components and the ratios in which they are combined.

5. In mixtures, no new substance is formed. The properties of a mixture are the same as the properties of its constituents.

6. The constituents of a mixture can be separated easily by physical methods. Evil or Very Mad Very Happy Smile Cool Cool Cool
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Difference between mixtures and Compounds

Post by DAV Science Teacher on Tue Sep 08, 2015 5:27 pm

Dear Students

write the difference between mixtures and compounds

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Re: Difference between mixtures and Compounds

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