Classification Content (element, compound, mixture)
Classification of Substance (Material)
The materials (substances) is anything that has mass
and volume. Therefore the material has a volume, it must
occupy a certain space. All the things that we can see or we touch, such as
solar, wind, books, glass, water and even our own bodies, all of them are
composed of material. The chemistry in the investigation of studying the
properties and changes of matter.
To study the properties of the material well, then in
the chemistry of the material is classified / are classified as follows:
a. Substance
Single (Pure) is a homogeneous material structure with the same chemical
properties
b. An
element is a substance with ordinary chemical reaction does not not broken down
into more
simple substances. Example: carbon, iron,
zinc, copper
c. Compound:
is a substance with ordinary chemical reactions can be decomposed into a
substance
more sederhana.Contoh: water, salt, carbon
dioxide
d. The mixture is a material
composed of two or more kinds of substances that are not chemically
bound and can be separated back
e. homogenous
mixture is mixed well every part is uniform in color, flavor and comparison
substances
mixed together well, and have no boundary
between the components. Example: The salt solution in
water and sugar solution in water
f. Heterogeneous
mixture is a mixture that each part was not as nice color, taste, and ratio of
mixing
substances are not the same and one
component with other components contained limit field, so that
we can distinguish one with the other. Examples of the
oil and water mixture and mix the coffee with water
To get to know more sense elements, compounds and mixtures,
let us discuss one by one:
A. Elements
At this time have
been known to many as 109 kinds of elements, which are divided into two parts:
1.
The element nature (1-92): - metal
-
Nonmetallic
2.
artificial elements (93-109): - metal
-
Nonmetallic
Natural elements
consist of:
Being Element
|
Metal
|
Nonmetallic
|
Solid
|
69
|
10
|
liquid
|
1
|
1
|
gas
|
0
|
11
|
total
|
70
|
22
|
Differences metals
and non-metals that possessed metallic luster, its form of solids, can conduct electricity and has a high
melting titi. While the non-metal can conduct electricity and has a low melting point.The element is the
simplest substance of the matter and a single substance. Elements that are the
basis of the
formation of compounds.
11 = Unununium
(Uuu) 222 = Bibibiium (Bbb)
1. Elements Of Metal
Metal
is the element that has the shiny properties andgenerally conduct electricity
and a good conductor of heat. Metal elements aregenerally solid at normal
temperature and pressure, except for mercury inliquid form. In general,
malleable metallic element that can be formed intoother bendabenda.
a.
Metal
Element Attribute
The properties ofsuch a metal
element: Tangible solid at room temperature (25 degrees centigrade)§ It can conduct electricity§ Shiny§ Can be forged and shaped §
Have a boiling point and the highest melting point.
Examples of metal
elements, namely:
·
Iron
·
Copper
·
Gold
·
Platina
·
And
mercury
Attributes
of Non Metallic Elements
While the
properties owned by non-metal elements are
·
Some are solid,
liquid or gas
·
It does not
conduct electric current
·
Not glazed§ Do
not be forged and shaped
·
Have a boiling point and a low melting point.
Metal elements
Indonesia Name
|
Latin Name
|
Name Symbol
|
Element Physical
|
aluminum
|
aluminium
|
Al
|
Dense,silvery white
|
barium
|
barium
|
Ba
|
Barium dense,silvery white
|
Besi
|
Ferrum
|
Fe
|
silvery white
|
Emas
|
Aurum
|
Au
|
solid gold, yellow
|
Kalium
|
Kalium
|
K
|
dense, silvery white
|
Kalsium
|
Calsium
|
Ca
|
dense, silvery white
|
Kromin
|
Chromin
|
Cr
|
dense, silvery white
|
Magnesium
|
Magnesium
|
Mg
|
, silvery white
|
Mangan
|
Manganium
|
Mn
|
solid, white and gray
|
Natrium
|
Natrium
|
Na
|
dense, silvery white
|
Nikel
|
Nickelium
|
Ni
|
, silvery white
|
2.
Non Metallic Element
The non-metallic element is an element that does not
have metal-like properties. In general,non-metallic elements are gaseous and
solid at normal temperature and pressure. Examples ofnon-metallic elements
which are gaseous oxygen, nitrogen, and helium. Examples of non-metals that are solid
are sulfur, carbon, phosphorus, and iodine. The non-metallic solids are usually
hard andbrittle. The non-metallic element that is a liquid is bromine. Consider
the following example of a
non-metallic
element:
Non-metallic
elements
Indonesia Name
|
Latin Name
|
Name Symbol
|
Element Physical
|
Belerang
|
Sulfur
|
S
|
dense, yellow
|
Bromin
|
Bromium
|
Br
|
liquid, reddish brown
|
Flourin
|
Flourine
|
F
|
gas, light yellow
|
Fosforus
|
Phosphorus
|
p
|
solid, white and red
|
Helium
|
Helium
|
He
|
gas, colorless
|
Hidrogen
|
Hydrogenium
|
H
|
gas, colorless
|
Karbon
|
Carbonium
|
C
|
dense, black
|
Klorin
|
Cholirine
|
Cl
|
gas, sulfur
|
Neon
|
Neon
|
Ne
|
gas, colorless
|
Nitrogen
|
Nitrogenium
|
N
|
gas, colorless
|
Oksigen
|
Oxigenium
|
O
|
gas, colorless
|
Silikon
|
Silicium
|
Si
|
solid, gray shiny
|
iodium
|
Iodium
|
I
|
black (purple vapor)
|
B.
Compound and Mixed
Compound
The compound is a single substance consisting of two
or more elements that can be decomposed into a simpler form through chemical
reactions. Most of the single substance that we usually find everyday is a form
of the compound. Such as water (H2O), salt (NaCl), sugar (CH3COOH), and others.
If the summer heat with a high sugar, sugar will be carbon and water vapor. And
the water that we get willbreak down into hydrogen and oxygen through a
chemical reaction of others. Thus the water and sugar is a compound because it consists
of several elements.Unlike the components of a mixture which still retain the
properties of the elements a compound is no longer displayed the
characteristics of its origin.
Example :
Salt, otherwise known as table salt which is composed
of the elements chlorine and sodium. This salt has very different properties
with the properties of its constituent elements
Mix
The mixture is a combination of two or more substances that are not united
chemically or substances still maintains its constituent respectively. Various
kinds of bias mixture classified into two types, namely a mixture of homogeneous and
heterogeneous mixtures. What exactly is a homogeneous mixture that ??? homogenous mixture
is a mixture of two or more
kinds of substances that are no longer visible boundary between substances that are mixed. The limit field
can not be seen though seen with a microscope. Homogenous mixture is often also
referred to as a solution. For example, air is a mixture of various gases. While
the heterogeneous mixture is a mixture of two or more substances that are still
visible field limit. For example, a mixture of water and oil The elements
react with each other to form substances called compounds. Defined compounds
are substances that are formed and composed of elements through a chemical
reaction. So the compound is a single substance.
As an example below :
compound
|
constituent elements
|
1. Water, H 2 O
|
H, O
|
1 Sugar, C12H22O11
|
C, H, O
|
2 Kitchen salt, NaCl
|
Na, Cl
|
3 Limestone, CaCO3
|
Ca, C, O
|
If substances joined to each other rather than through
a chemical reaction but rather by means of physics then the combined substances
are called the mixture. Land, air, river and sea, are examples of mixtures.
Component (constituent substance) may be a mixture of elements or compounds.
For example, a mixture of elements with the elements, elements with a compound
or mixture of compounds with compounds.
C. Compounds difference
with Mixed
The mixture can be
distinguished by the compounds include:
a. Mixed
1. Elements formation always up according to certain
rules
2. The properties of its constituent elements missing
3. Separation of the elements that combine to form
compounds with only certain ways, which is sometimes difficult to
do
b. Compounds
1. The
elements are not mixed according to certain rules (which varies / vary)
2. The
properties of mixed elements are not lost
3. Separation
elements mingled easily done.


Is the atomic number is always smaller than the mass number???
BalasHapus
Hapus* Atomic Number and Mass Number
Atoms are the smallest particles making up matter. Atoms consist of several elementary particles, ie electrons, protons, and neutrons. The existence of particles that causes the atoms have electrical properties, because negatively charged electrons, positively charged protons and uncharged neutrons.
An atom has a mass of a typical nature and with one another. With the discovery of the subatomic particles known term atomic number (Z) and mass number (A).
1. Atomic Number (Z)
The number of protons in an atom is called the atomic number of the given symbol Z. The atomic number is typical of an element, the atom is neutral because the number of protons is equal to the number of electrons. So the atomic number also shows the number of electrons.
Electron is what will most determine the nature of an element. The atomic number is written somewhat downwards before the symbol of the element. The oxygen atom has 8 protons and 8 electrons so that the atomic number 8.
2. Number Mass (A)
As previously outlined the electron mass is very small, is considered zero. So the atomic mass is determined by the atomic nuclei are protons and neutrons.
The mass number is written slightly upward before the symbol of the element. The oxygen atom has an atomic number 8 and mass number 16, so that the oxygen atom contains 8 protons and 8 neutrons.
No. Massa (A) = number of neutrons or protons +
The number of neutrons = mass number - atomic number
Please provide the characteristics of the metal elements
BalasHapusThe nature of the metal element, among others:
Hapus- generally shiny;
- a good conductor of electricity;
- a good conductor of heat;
- can be forged into a slab or slabs;
- can be stretched or drawn into wire;
- generally are solid except for mercury (mercury).
- Have a boiling point and the highest melting point.
what all atoms can be copound? and is there any rule in the manufacture of compound
BalasHapus
HapusYes, of course because the Atoms combine to form compounds with simple and integer ratios. For example water consists of hydrogen atoms and oxygen atoms.
Do not be forged and shaped, what does it mean?
BalasHapusForging is the technique of making metal objects. Example: making knives. So the meaning of the word forged is a metal can be formed, made tooling as we see fit.
HapusSo what is the conclusion of the material that you post?
BalasHapusThe conclusions of the material I post are:
HapusUnsure = pure substance that can not be replaced again
Compound = pure substance formed From 2 amalgamation of 2 elements or more through chemical process
Mixture = a combination of 2 or more pure substances that does not occur through its chemical reaction, occurs only through physical mixing
BalasHapusWhat is the difference between compound and mixture ?
Compounds difference with Mixed
HapusThe mixture can be distinguished by the compounds include:
a. Mixed
1. Elements formation always up according to certain rules
2. The properties of its constituent elements missing
3. Separation of the elements that combine to form compounds with only certain ways, which is sometimes difficult to do
b. Compounds
1. The elements are not mixed according to certain rules (which varies / vary)
2. The properties of mixed elements are not lost
3. Separation elements mingled easily done.
What are the differences of metal elements and nonmetallic elements? How to differentiate it? And what are elements of metal and non-metallic elements?
BalasHapus
HapusDifference Metals and Nonmetals
Metals are generally present in solid form at room temperature except for liquid mercury at room temperature. While non-metals may be solid, liquid and gas at room temperature.
Metals are good conductors of heat and electricity whereas non-metals are poor conductors of heat and electricity.
Metal elastic in nature that can be changed shape or forged while non-metal is not elastic.
Sparkling metal whereas nonmetal dull.
The metal contains 1 to 3 electrons in its outer shell, while non-metals contain 4 to 8 electrons in its outer shell.
The metal loses electrons to form electropositive ions while non-metals receive electrons to form electronegative ions.
Metals have low enthalpy ionization and non-metals have high enthalpy ionization.
Metals react with oxygen to form the base oxide while non-metals typically react with oxygen to form acid oxides.
The reducing metal is good because it loses electrons easily from the skin on the mosquito net while nonmetals are good oxidizers as they receive electrons in the outer shell.
The metal can cause a loud noise while non-metal does not.
Metal samples: Na, Al, Ba, Ca
Non-metallic examples: F, Cl, Br, I
You said, Examples of metal elements, namely: Iron, Copper, Gold, Platinum and mercury. Why do many facial whitening products use mercury? What are the characteristics of mercury
BalasHapusBecause mercury (Hg) can whiten the face, Generally, mercury metal has the following characteristics, liquid form at room temperature (250C) with freezing point (-390C). It is the most volatile metal. It has very low electrical resistance, so it is used as a good electrical conductor. Can form alloys with other metals (also called amalgam).
HapusMention the example of easily formed metal into an object?
BalasHapusALUMINUM AND IRON, EXAMPLE:
HapusSpoon
Fork
Knife
Pan
Pan
Screwdriver
Ban Motor Grate
Wire
Ring
Bracelet
Iron fence
Is the amount of homogeneous mixture limited in nature?
BalasHapusNo, because the homogeneous mixture is a mixture where there is a composition and properties of the same substance. For example, like air, air is a collection of substances that have homogeneous properties, the proof we will not live in this world if there is no air. One tablespoon of salt is put into a glass of water. Which is then stirred until evenly distributed, this can also be called a homogeneous mixture. Water and salt are also infinite. So homogeneous mixture is not a finite mixture in nature.
Hapus