Can someone plz help....i'm really having a hard time.

Question

give at least 2 examples each for homogeneous and heterogeneous...chemistry, and defend your answer why that particular example is homogeneous or heterogeneous.plz i need your answers A.S.A.P. more detailed answer i'll chose as best answer...:D

Answer 1

> homogeneous is similar, or the same as something else; having the same composition throughout; uniform; in the same state of matter

---> salty water (where the salt is completely dissolved)

> heterogeneous is a mixture in which the ingredients are not uniformly dispersed

---> sandy water (even though it's mixed, you can still see the separationation)

Answer 2

IDK what homogeneous chemistry is.  Do you?

I DO know what a homogeneous material is (or heterogeneous)

I DO know what a heterogeneous reaction is (or homogeneous)

homo chemistry?  Sorry.

Did you mean "Most detailed answer"?

Perhaps part of your problem is you aren't fluent in English?

Kids aren't, these days.  Hard to understand precise concepts and fine distinctions beteen things when your English skills are so fuzzy.

Homogeneous: LLLLLLLLLL  or mmmmmmmmm

Heterogeneous: LLLLlLLLLL   or  LialQwERRRZxx

These concepts are used for macroscopic materials most often, and occasionally they are used for microscopic materials but rarely are they applied at the atomic or small molecule size (and here only in the case of surfaces)

Homo means "the same"  Hetero meand "different"

Oatmeal is homo, Oatmeal with raisins is hetero

Looking closely at oatmeal, you might see different colors, so actually as you look closer, you might reconsider and conclude that oatmeal is hetero

If you look closely at most rocks they have differnt bits in them - hetero

You might be able to find a piece of quartz that is all white, or gems of uniform color.  Homo.

Sky?  Water?  On a clear day or cloudy?  From a stream or your tap?

Homogeneous and heterogeneous reactions require you to understand the idea of phase.  A phase is homogeneous.  Oil and water mixed is still two phases.  Mud is at least two phases (sand and water).  Sugar dissolved in water is one phase.  Orange juice is probably heterogeneous,  where as Sunny delight might just be one (IDK, take a look).  Milk is actually two phases, but looks like a homogeneous phase.  Add salt and you'll see the "curds and whey".  You could call milk a homogeneous emulsion, even though chemically there are several phases present.

A Homogeneous reaction occurs in one phase.(Usually liquid or gas)

A heterogeneous reaction occurs with at least two phases involved.  Rust, a gas lantern.

Answer 3

homogenous just means that it can't be separated into its component parts---for example NaCl (table salt) can't be separated into sodium and chlorine;  milk cannot be separated into its various components:  water, fat, protein, etc.

heterogenous items can be easily separated into their components without chemical interventio:  ex.  a salad can easily be broken down into lettuce, tomatoes, etc.;    a bouquet of flowers can be separated into roses, carnations, daisies, etc.