what are the mixture and compound different?

Basically, mixture is a blend of two substance physically. You can seperate them by physical means (like evaporation, filteration). And compound is a blend of two substance chemically. You have to use chemical ways to seperate them (radiation)
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Mixture

Mixture is a mechanical blending of substance physically. The substance will keep its own identity and chemical properties because they're not blending chemically.

Two Kinds of Mixtures

1. Homogeneous mixtures
2. Heterogeneous mixtures

1) Homogeneous mixtures are mixtures that have a definite composition and properties. You can't really see the substance that are being mix together.
- Solutions: A solution is a homogeneous mixture of two or more substances (solute) dissolved in another substance (solvent).

Solid to liquid ---> Salt dissovled in water.
Liquid to another ---> water evaported in air
Liquid to solid ---> water to ice
Gas to solid --->

2) Heterogeneous mixtures are the opposite of homogeneous mixtures -- they're mixtures that doesn't have a definite composition. You can see the substances that are being mix easily
- Colloid: A mixture mix with a homogeneous mixture and a heterogeneous mixture with properties also intermediate between the two.

Examples: milk, chocolate chip cookie, jello, pizza ...

You can seperate mixture using physical means. Filteration, evaporation, distillation, chromatography, solubility or density differences are physical ways to seperate mixtures
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Compound

Compound is a pure substance composed of two or more elements whose composition is constant with a fixed ratio determining the composition.

For example, water is a compound (H2O) and salt is a compound too (NaCl)

You can't seperate compound by physical means. You need to seperate them using chemical means. Like radiation.

物質可以分為純物質和混合物(Mixture)。而純物質可分為元素(Element)和化合物(Compound)。
化合物(Compound)
甚麼是化合物?
化合物是由兩種或以上的元素經過化學反應結合(化合)而成的物質。
A compound is a substance made of two or more elements chemically joined together.

在形成化合物的過程中，通常會釋放能量，當中的能量變化如下：
化合物(儲存在元素中) → 熱能/光能/聲能
例如氧化銅是由氧、銅組成；氯化鈉是由氯、鈉所組成；水是由氫、氧組成等。
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混合物(Mixture)
甚麼是混合物?
混合物是由兩種或以上的元素或化合物未經化學作用混在一起而成的。
A mixture is made up of two or more elements or compounds not chemically joined together.

例如河水、空氣、溶液等。混合物沒有化學式。混合物因為是由多種純物質經由物理方式所合成，故其性質雖不固定，但會保有原純物質的特性。比如說糖水，嚐起來甜是因為糖的關係、可以流動是因為水的關係。

而一般來說化合物就是由混合物產生出來的
但是混合物就不一定可以產生出化合物了

A mixture is the product of a mechanical blending or mixing of chemical substances like elements and compounds, without chemical bonding or other chemical change, so that each ingredient substance retains its own chemical properties and makeup.

A chemical compound is a chemical substance consisting of two or more different chemically bonded chemical elements, with a fixed ratio determining the composition.

For example when oil mixes with water it is a mixture because you can separate each component.

If you light a carbon/charcoal, it produces carbon dioxide because carbon + oxygen generate carbon dioxide. You cannot simply 'separate' out carbon and oxygen again so carbon dioxide is a compound.