The particles show a Tyndall effect. The size of the particles is between one nanometer and one micrometer. A compound is the substances that are formed by combining two are more chemical elements. A mixture is a substance created from two or more matter that can be separate with the help of physical methods.
Compound substances are always homogeneous in nature. Nature of Mixture substances can either be homogeneous or heterogeneous. A mixture of oil and water, sand and soil, sulphur and iron filings, smoke and fog smog etc are some examples. Compounds are of three types i. Moreover, compounds can also be classified as organic or inorganic compounds based on the presence of the carbon atom.
There are two main types of mixture i. Substance category. Mainly pure water is part of the compound. Mixtures fall under impure water. Separation of constitution. The only methods that can be separate constituents of compounds are chemical and electrochemical like extraction.
The constituents of a mixture can easily be separated by physical like filtration method. The ratio of the elements in compounds is always fixed. They contain only one type of molecule. Also, the elements chemically combined. Whereas, a mixture can have a variable composition of substance in forming but the ratio is not fixed nor they are combined via chemical bonds.
A compound is represented using its chemical formula. A mixture cannot be represented by using formula. In a compound, the properties are peculiar to itself as the constituents of a compound lose their original properties. The constituents of a mixture do not lose their property. So, the mixture properties are generally a sum of the properties of its constituents. New substance. When two or more constituents are chemically combined, they together formed a new substance.
No new substance is formed in mixtures and its properties depend upon the properties of its constituents. Melting and boiling point. The melting and boiling point of a compound is defined. No melting and boiling point is defined in a mixture. Mass ratio. A compound is depending upon specific ratio. Composition Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds. They contain only one type of molecule. Elements that compose the compound are chemically combined.
Mixtures contain different elements and compounds but the ratio is not fixed nor are they combined via chemical bonds. The ingredients are physically mixed but chemically separate. Often they are visibly distinct. A mixture can be separated into simpler substances by physical or mechanical methods. Salt in water; pasta and sauce; sand; pebbles; solutions such as rubbing alcohol, dental amalgam, vapor in air; colloids such as mayonnaise, milk, cheese; coarse suspensions such as mud in water, oil in water.
Representation A compound is represented using its chemical formula that represents the symbols of its constituent elements and the number of atoms of each element in one molecule of the compound. Mixtures cannot be represented by chemical formulas.
Chemical and physical properties Compounds have specific chemical and physical properties that are distinct from their constituent elements because the constituent elements lose their properties when they combine to make the compound.
Mixtures do not have specific, consistent chemical and physical properties of their own. They reflect the properties of their constituent substances, which retain their original properties. Compounds are classified into molecular compounds, ionic compounds, intermetallic compounds and complexes. Solids, Liquids and Gases can be combined to create a mixture. Mixtures can be homogeneous or non-homogeneous. Mass ratio Compounds have specific mass ratios.
This is true of all pyrite no matter the sample size. The hydrogen and oxygen have joined together to form the new substance water. Properties Keeps the properties of the substances involved. This mixture is in the gas state. Properties are different from those of the elements it contains.
This compound is a liquid. Separation The substances in the mixture can be separated. Cannot be separated but can be obtained by using chemical reactions. Distinguishing between pure substances and mixtures Pure substances have a sharp melting point but mixtures melt over a range of temperatures. The temperature stays the same while a pure substance changes state The horizontal part of the graph shows that the salol has a sharp melting point, so it is pure.
Variable composition - the relative amounts of the two gases can be changed. Keeps the properties of the substances involved.
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