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Q: Which mixtures cant be separated using sifting?
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What are the characteristics of a subtances and mixtures?

The components of a mixture are not chemically combined and do not have a definite composition. A pure substance is either an element or a compound (in which case it is composed of elements that are chemically combined) and has a definite composition.


What two groups are mixtures divided into?

Mixtures are divided into two groups: homogeneous mixtures, where the components are evenly distributed and indistinguishable, and heterogeneous mixtures, where the components are not evenly distributed and can be seen as separate phases.


What are hetogeneous mixtures?

Heterogeneous means of different types. So a heterogeneous mixture is a mixture of dissimilar items. Homogeneous means of the same type so a homogeneous mixture would be a mixture of similar items.A mixture where two or more substances are mixed together but are not chemically combined is called as an heterogeneous mixture.In chemistry, heterogeneous mixture is a mixture of two or more different substances in the form of solution or colloids. For example, salad is an heterogeneous mixtureA heterogenous mixture is not uniform in composition and properties throughout.


How can you make energy using waterfalls?

it cant make energy it is kinetic if it flows


Is Au pure substance a homogeneous mixture or a heterogeneous mixture?

Homogeneous mixtures are the all the same (homo = same). Heterogeneous mixtures have different parts (hetero = different). Think of it as you could separate heterogeneous mixtures with tweezers, like a pizza, while silly putty is all together and you cant separate it like that. Therefore, because Au is the atomic symbol for gold, an element, it must be homogeneous. Hope this helps!

Related questions

Mixtures can what but compounds cant?

Mixtures can be separated by physical methods.


What are the characteristics of a subtances and mixtures?

The components of a mixture are not chemically combined and do not have a definite composition. A pure substance is either an element or a compound (in which case it is composed of elements that are chemically combined) and has a definite composition.


How can blood be separated from the plasma?

IT CANT


Why cant liquids dissolve in water?

Many liquids form mixtures with water !


How do compound and mixtures differ?

Elements are one type of element in a group where all the elements are the same or a lonely single atoms. Compounds are two or more different types of elements and mixtures are a lot of elements made so that unless you use a good separating technique you would not be able to separate them. an example is air you cant really separate that unless you use serious power hope this helps


What two groups are mixtures divided into?

Mixtures are divided into two groups: homogeneous mixtures, where the components are evenly distributed and indistinguishable, and heterogeneous mixtures, where the components are not evenly distributed and can be seen as separate phases.


What can compounds do that mixtures cant?

A compound is a simple substance, a mixture is formed from two or more compounds.


Why cant mixtures be represented by formulas?

Mixtures are composed of two or more different substances physically combined, so they do not have a fixed chemical composition like compounds. As a result, mixtures cannot be represented by chemical formulas which typically describe the specific ratio of elements in a compound.


How can you remove oils from water?

you cant really remove them because they are already separated


Is a colloid separated by filteration?

yes most likely because you cant separat a solution


What is the difference between heterogeneos and homegenous mixtures?

Heterogeneous mixtures have visibly different components that can be distinguished by the naked eye, such as a salad. Homogeneous mixtures have uniform composition throughout, like salt dissolved in water.


How do solutions compare and contrast with heterogeneous mixtures?

a mixture is a things or more mix together and a solution is 2 or more things that mix together that you cant see that well.