Question

Write any two differences between a compound and a mixture. Also, write two examples of each.

Answer 1

Hint: Consider whatever you have learned while studying elements and substances and answer the question according to the formation and physical and chemical properties of them.

Complete step by step solution:
The differences between compounds and mixtures are as follows:

Compounds	Mixtures
Compounds involve the chemical bonding and combination of two or more elements.	Mixtures involve the physical mixing and combination of two or more elements.
They are classified as pure substances.	They are classified as impure substances.
There are many ways to classify compounds:As metallic, ionic, or covalent compounds based on the type of bonds in the molecule.Or as organic and inorganic compounds based on whether they have carbon and hydrogen present.	Mixtures are usually classified homogenous or heterogenous mixtures based on the phases of its constituents.
The composition of a compound is fixed, the elements are always present in specific proportions.	Mixtures can contain any proportion of its constituents; it is not fixed.
The constituent elements present in compounds can only be separated by chemical or electrochemical methods.	Constituent substances of a mixture can be separated easily by physical methods like distillation and filtration.
The properties of a compound are not indicative of the physical or chemical properties of their constituent elements	The properties of a mixture are considered to be the sum of the individual properties of its constituents.
The formation of a new substance occurs when compounds are formed, almost none of the constituents are reflected.	No new substance is formed in a mixture, all the constituents are reflected in the mixture.
Examples:Water - ${{H}_{2}}O$: composed of hydrogen and oxygen in the proportion 2:1Methane - $C{{H}_{4}}$: composed of carbon and hydrogen in the proportion 1:4Common salt - $NaCl$: composed of sodium and chlorine in the proportion 1:1	Examples:Air – composed of mainly nitrogen, oxygen, and other trace elementsSalty water – composed of $NaCl$ and ${{H}_{2}}O$Bronze – composed of $Cu$ and $Sn$

Note: Looking at the examples given for mixtures, consider air and alloys, we know that a general proportion of the constituents is fixed. For air, it contains about 78% of nitrogen and 21% of oxygen, the rest of the 1% contains other trace gases. If a condition arises that this mixture contains 70% nitrogen and 28% oxygen, we will not stop calling it air, and the properties will be somewhat similar since the proportions do not have to be fixed. For the bronze alloy, it contains mainly copper and about 12% of tin. Changing these proportions a little bit will not change the fact that the alloy is called bronze and thus flexibility is allowed.