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Area: Science Visit Natural

Hello!

This time we break down one of the areas of participation in Expo Science, these are the Natural Sciences, which covers projects related to mathematics, physics, chemistry and all its derivations.

Chemistry: Science that studies the composition, structure, properties and reactions of matter, especially of atomic and molecular systems.
Behavioral and Social Sciences: A study of thought processes and behavior of humans and other animals in their interactions with the environment. • Analytical Chemistry • General Chemistry • Inorganic Chemistry • Organic Chemistry • Industrial Chemistry Mathematics

: Study of the extent, characteristics and relationships of quantities and systems, using numbers and symbols. Deductive study of numbers, geometry, abstract constructions or structures. • Algebra • Analysis • Geometry • Probability and Statistics

Physics: The science of matter, energy and their interactions with each other. Magnetism and Electromagnetism • Classical Astronomy • Physics (Mechanics, Thermodynamics, Optics, Electromagnetism) • Biophysics: Physical study of biological processes • Instrumentation (exact measurement systems) • particle nuclear physics: the notably related to the nature of matter and nuclear

Earth and Planetary Science: The study of sciences related to the planet (geology, mineralogy, physiography, oceanography, meteorology, climatology, caving, geography, atmospheric sciences, etc. .).


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SALES OXISALES

OXISALES (neutral salts) neutral salts (OXISALES) ternary compounds are formed by a non-metal, oxygen and metal. Total are obtained by neutralization of a hydroxide on oxoacids acid. The reaction that takes place is: oxoacids ACID + HYDROXIDE -> SAL NEUTRAL + Agualada complete neutralization of acid by base involves the replacement of all hydrogen ions by acid cation hydroxide, water also formed in the reaction. It can therefore be considered as binary compounds formed by a cation (from the base) and an anion (from the acid). The formula is written first and then the anion cation. By reading the order followed the formula is the name inverso.Para neutral salts, just use the name of the corresponding anion and add the name of the cation, as noted above anteriormente.Si the anion has subscript, can be expressed with multiplicative prefixes bis , tris, tetrakis, pentakis, etc. However, if the metal valence states are not accurate these prefixes, it is sufficiently clear nomenclature compuesto.___________________





ACIDS Hidrácidos
H + NO METAL
F (-1) Cl (-1) Br (-1) i (-1) S (-2)
H (+1) F (-1) HF AC HYDROFLUORIC
H2 (+ 1) S (-2) sulfide H2S AC
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H + radical oxygenated
NO2 (-1) nitrite radical
NO3 (-1) nitrate radical
SO2 (-2) HIPOSULFITO
radical SO3 (-2) sulfite radical
SO4 (-2) SULFATE
radical CO3 (-2) carbonate radical
PO3 (-3) phosphite radical
PO4 (-3) phosphate radical radical

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ACID
BEAR
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AC HNO2 nitrous oxide
AC AC HIPOSULFUROSO
HNO3 H2SO2 H2SO3 sulfurous

AC AC AC
H2SO4 sulfuric dioxide H2CO3
AC MATCHES AC
H3PO4 H3PO3 phosphoric

METAL HYDROXIDES hydroxyl radicals
Na + (+1) K (+1) Li (+1) Cu (+1) Ag (+1)
Mg (+2) Zn (+2) Cu (+2) Fe (+2)
Fe (+3) Al (+3)
Na (+1) OH (-1) SODIUM HYDROXIDE SALTS

hydrosalts
HCl (hydrazide) chloric acid (H is changed metal) SODIUM CHLORIDE NaCl
NAME NO NAME + METAL + METAL URO
OXISALES
HNO2 eg Na (+1) NO2 (-1) sodium nitrite
NAME OF NAME OF METAL RADICAL +

IONIZATION AC ( aq) H (1 +) hydrogen radical + 1 - (aq)
hydroxide (aq) metal (aq) No. of ox + OH1-(aq)
Sales metal + radical

1 mol 6.02 23 x 10
1 mol (g) 22.4 liters

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HYDRIDES

binary hydrides are compounds formed by atoms of hydrogen and another element, and there are three types: metal hydride , hydracids Acids and Volatile Hydrides. How
made? Metal Hydride

To make metal hydrides is written first symbol of the metal, below the symbol of hydrogen (H) and then the valence of the metal. Formula: XHn

hydrohalic acids acids to make hydracids is written first symbol of Hydrogen (H) below the valence non-metal and past the command sulfur, selenium, tellurium, fluorine, chlorine, bromine or iodine. Formula: XnH
Hydrides VolatilesPara make volatile hydrides first write command nitorgeno, phosphorus, arsenic, antimony, boron, carbon or silicon, below the symbol of hydrogen (H) and then the non-metal valence correspondiente.Fórmula:

XHn How are they named? Metal Hydride

come from the combination of hydrogen and a metal. If the metal is combined with having a single valence are named by the words Hydride, and the name of the metal that is combined. In other nomenclatures Like the oxides, the only thing that instead of oxide hydride is placed.

Examples: Traditional / Stock / Systematics. ------------------------------------- CaH2
Hydride Calcium / Hydride Calcium / Calcium dihydride .
--------------------------------------- NaH Sodium Hydride / Sodium Hydride / Hybrid Sodium.

If the metal with which combined has two valences, it becomes like that of a valence metal but the name just a bear when she performs with lower valence and ico when acting with the valence greater and was removed prefix.

Examples: ------------------------------------- FeH3
ferric hydride. ------------------------------------- FeH2
Hydride ferrous.

hydrohalic acids are binary combinations between the hydrogen and the following non-metals:
Element Element


Valencia Valencia 2

Sulphur

1
Fluorine Chlorine Bromine


Selenium Tellurium Iodine

hydracids Acids are named only in the traditional nomenclature and systematics, and not in the Sock. Traditional

are named with the word acid followed by the name of nonmetal ending in water.
Examples: -------------------------------------
hydrochloric acid HCl. Hydrogen Sulfide H2S
-------------------------------------. Systematic

are named first putting the name of uro not finish metal. and continues with the words of hydrogen.
Examples: -------------------------------------
HCl hydrogen chloride. H2S
hidrógeno.Hidruros ------------------------------------- Volatile Sulfide
combinations are hydrogen with the following chemical elements, and contain the following valences:
Element Symbol

Valencia

N Nitrogen Phosphorus
3

P

As
Arsenic Antimony Sb

Boro

B C
Carbon Silicon
4

If
The volatile hydrides are named in the scheme, rather than the traditional Tien a special name for each ello, and are indicated in this table:

Formula Common Name Systematic


NH3 Ammonia Nitrogen
Trihidruro
PH3 Phosphine

Trihidruro phosphorus
Arsine AsH3

Trihidruro arsenic
SbH3
stibnite antimony
Trihidruro
BH3
Boran
Trihidruro boron

CH4 Methane Carbon
Tetrahidruro
SiH4
Silan
Tetrahidruro
Los silicon hydrides are not volatile nombre en la Stock.

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basic oxide oxides



acid oxides in the metal + O2 oxidizes ACID

Examples of acid oxides:

------------------ C4 + O2 OXIDE CARBON CARBON OXIDE
(IV) tetroxide CARBON



basic oxides anhydrides can be written as "non- metal "bear-terminated when using the lower valence, and end-ico if you use the most. In the case of only the ending is-ico.

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Why hire a professional?

How to choose and hire a photo and video service?

Given that one of the most important moments in your life and we are sure you want to preserve and save every moment of the wedding to remember. That's why you hire a professional service and do not trust a family members sometimes take pictures with their cameras or cell phones, remember that you also are invited and want to enjoy the party (or dance with your partner or you take photos).

search To choose several options, many photographers manage all inclusive packages (Photos and Video) that can be adjusted to your needs and especially your budget and is very important to remember that sometimes the cheap you can be very expensive because you are putting your party which is unique.

Calls show you previous work so you can see the quality of their material and how to deliver their work, research your address and company name to see if it is well established and so avoid that big day a bad time taken by a hair.

Photo Studio

Photo are where you and your boyfriend posing for the camera to create artistic photos and will look subsequently in the room of your home and your potatoes.

Photos and watch video testimonial or

Generalmete if not always, the couple lost many details of the wedding, one way avoid it is to this service, which is made for religious or civil ceremony and reception; While the pictures are captured moments of the wedding thanks to sensitivity and vision of the photographer, video, sound and motion you can see what happened at that moment. Usually deliver it to music with your favorite themes and edited by computer with a photographic portrait of the couple.

If your budget allows, hire both Photo and Video services, if not, hire the one you convince (Remember this moment is unique and well worth make the effort).

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GENIOS WANTED!

looking for you!

We invite you to visit our homepage, where you will find information about South-South Regional Expociencia Veracruz 2008

www.expociencias.org.mx

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basic oxide

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acids

basic oxide

a metallic element reacts with oxygen to form an oxide, in this case
metal and oxide will be called basic oxides.


OXIDE METAL + OXYGEN BASIC ------------------





Na2O Na + O2 Oxygen Sodium Oxide Sodium

in those items with a single state oxidation, to name the corresponding oxide makes use of the preposition "of" between the word oxide and element name, for example

SODIUM OXIDE CALCIUM OXIDE

What about iron?
Here you will find something new: the Iron has two oxidation numbers, 2 and 3, according a como reaccione con el oxígeno actuará con uno u otro número de oxidación.

Si actúa con Nº de oxidación: 2





Fe + O2 FeO
Hierro Oxígeno Óxido Ferroso

Si actúa con Nº de oxidación: 3





Fe + O2 Fe2O3
Hierro Oxígeno Óxido Férrico

En aquellos que tienen dos estados de oxidación utilizamos la palabra óxido, seguida por la raíz (primer parte) del nombre del elemento y una terminación que diferencia a both oxidation states, eg

FERROUS OXIDE IRON OXIDE

In these cases you have to do with that number of active oxidation:

OXIDATION STATE OF TERMINATION


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Other examples:
K + O2

Potassium K2O potassium oxide Oxygen






MgO Mg + O2 Oxygen Magnesium oxide Magnesium






Cu2O Cu + O2 Oxygen Copper Cuprous oxide





Au \u200b\u200b+ O2 Oxygen Oxide Gold Au2O3
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Expociencia under construction!

Friends! As you know, the South-East Regional Expociencia 2008 is looming, so the organizing committee has doubled its efforts in the various activities that the committee has been assigned. Soon will attach relevant information about the areas involved in this great event of popular science, and outstanding projects and newsletters as published in various media.

Remember to visit the official event page, where you can find the registration form and general information:

http://www.expociencias.org.mx

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Want to be a Friend of Delegation? Regional Expociencia

If you are sociable, outgoing, articulate, organized and responsible, have a broad knowledge of general culture and a taste for science and technology issues this is for you.

What is a Friend of Delegation ?

are members of the coordinator of the Expo Science, are young enthusiasts interested in interacting with other young people from different places, are responsible for the integration of the participants during the event and are the ones who maintain a harmonious environment through constant personal communication.

What develops functions Delegation Friend?

Attend and provide complete, timely and effective participants in the Expo Science, ie receive and drive to their hotels, coordinate shipments, clarify all doubts regarding the event and the city, and accompany cultural visits.

What are the advantages of participating in a Expociencia?
addition to direct training, you are entitled to your record of the event with curricular value, a shirt and material identification. Besides food, transportation, entertainment and many friends.

Do not delay because space is limited please contact YA.

For more information and registration please send an email to geojuvenil@gmail.com