Can you explain me what are element, compound, and mixture mean with the examples ?

Question

This is about chemistry lesson in school. Please, explain me as complete as possible

Answer 1

An element is a substance which cannot be split up into two or more simpler substances by the usual chemical methods of applying heat, light or electric energy. For e.g. Hydrogen and oxygen are elements as they cannot be split up into two or more simpler substances because they are made up of only one kind of atom. On the other hand, water is not an element as it can be split up into hydrogen and oxygen, by electricity.

A mixture is a substance which consists of two or more elements or compounds not chemically combined together. For e.g. air is a mixture of gases like oxygen,nitrogen,argon etc.

A compound is a substance made up of two or more elements chemically combined in a fixed proportion by mass. For e.g. water is a compound made up of two elements, hydrogen and oxygen, chemically combined in a fixed proportion of 1: 8 by mass.

Answer 2

Want some what simple Explation... Try this!:

An element is a molecule, a part of matter sometimes bigger than an atom, with the same kind of atoms. For example, oxygen is a covalent bond (if you don't know bonds, just forget) between two oxygen atoms. So it is an element, only oxygen is found. Elements are sometimes called pure.

Compound is the opposite of element. It has two or more kinds of atoms. For example, NaCl (Table Salt) is a compound. Compound have different properties than those of the atoms making it. Compounds can be more stable (just complete, if you don't know "stable") than atoms making it. It is hard to let some compounds return as before, two substances or more!

Mixtures are some how the opposite of compounds. They are a mixture (verb: mix) of substances BUT every one has the same properties it had before. A mixture usaully can be easily returned like before.

Answer 3

In a mixture you can separate the different elements or compounds by a phyiscal way. Ex:- sand and iron mixture. if u put a magnet near the iron will sepearate from the sand.
In a compound you can't do that. You can sepaerate the element by a chemical way.
Element is something however you try to sepearate you will end up with the same phsical and chemical qualities.

Answer 4

Element - Simplest form of a substance E.g Aluminum (Al)
Compound - Substance where elements are chemically bonded to each other E.g Sodium Hydroxide (NaOH)
Mixture - A substance where the elements are not chemically bonded E.g Sand + Water

Chemical bonds are harder to break. Mixtures can be separated easily mainly through filtration or evaporation.

Answer 5

Here's the answer:
Element: Any pure substance which cannot be broken into two or more pure substance by any chemical means is called an element.
OR
A substance which is made up of only one kind of atoms is called an element.
Examples of elements are:
1. Hydrogen molecule consists of two atoms of hydrogen. (H2)
2. Oxygen molecule consists of two atoms of oxygen. (O2)
3. Sulphur molecule consists of eight atoms of sulphur. (S8)

COMPOUND:
When two or more atoms of different elements combine together in a definite proportion or ratio, then the substance formed is said to be a compound.
THe molecule of a compound can be broken into elements by chemical means. For example, a molecule of water contains two atoms of hydrogen and one atom of oxygen. It can be broken into its constituent elements of hydrogen and oxygen by passing electric current through it.
EXAMPLES OF COMPOUNDS:
Iron sulphide is compound containing sulphur and iron. Likewise, Magnesium sulphate, calcium chloride, aluminium sulphate and ammonium phosphate, etc. are compounds.

MIXTURE:
If two or more substance (elements or compounds or both) are mixed together in any proportion, such that they do not undergo any chemical change, but retain their individual properties, then the resulting mass is called a mixture.
KINDS OF MIXTURE:
(a) Heterogeneous mixture: A mixture in which its constituents are not distributed uniformly is called heterogeneous mixture.
Eg: A mixture of salt, sand, charcoal and sulphur is a heterogeneous mixture. We can easily identify each of the constituents of the mixture under a powerful magnifying glass.

(b) Homogeneous mixture: A mixture in which its constituents are mixed uniiformly is called homogeneous mixture.
Eg: Sea water, salt solutions, syrup, milk, fruit juice, ice cream, medicines in solution form, etc. are some examples of homogeneous mixture.

Answer 6

they are ways to identify the periodic table elements
compunds are more than one element on the table
mixtures are more than one compound mixed together

Answer 7

They are ways we classify matter.
element - pure material made of only one type of atom.
compound - pure material made of two or more different types of atoms chemically joined
mixture - made of two or more different substances physically mixed which may be separated by physical means.
Now go use your text book and find examples of each.