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In the first meeting with you I want to ask questions about chemistry with answers and some pictures that will benefit you and all right to ask me a question to answer them 

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questions : -

1-Definition of chemistry ؟

Chemistry is the science that deals with the detailed study of the element of chemical and material, and to address the characteristics and behavior and interactions that occur on them, their structure and composition, and all related article changes, and it is also called the central science name; due to collected more than one type of the types of science physics and linked with natural sciences , Linking biology, astronomy and geology.

2-Basic Sections of Chemistry ؟

Events: 

1-Analytical Chemistry : 

This type of chemistry is interested in studying the chemical composition of the material, and how to build this structure by taking samples of this article and analysis, and to identify the characteristics of the chemical and chemical formulations.

 2--organic chemistry : 

Interested in studying organic compounds and changes from interactions, and to identify the composition and properties in detail.Interested in studying organic compounds and changes from interactions, and to identify the composition and properties in detail.

3-Biochemistry :

This type focuses on chemical and study it closely, and also highlights the study of what happens in living organisms from chemical reactions.

4-Inorganic chemistry :

This type of chemistry interferes significantly with organic chemistry, but this type is interested in studying inorganic compounds and their properties and their interactions.

5--physical chemistry :

Constitute cases of energy in chemical reaction processes The main objective of this type of chemistry, where she is studying what occurs to situations of energy changes, and the most important types: thermal chemistry, spectra, and quantum chemistry, statistical mechanics.

3-The importance of chemistry ؟

1-It helps to understand and absorb what surrounds us material.

2-It is one of the components of all living organisms activities.

3-Human help to exploit the surroundings of raw materials, and how to turn them into useful materials.

4-It contributed to the production of chemical fertilizers.

5- It is considered the cause of a synthetic fiber.

6-Intervention in industrial fields and textiles eg, clothing.

7-Given the human ability to avoid high-risk materials that threaten his life.

8-It plays a key role in achieving progress and well-being of the human being.

9-Helps to understand and absorb what surrounds us.

4-Basic Principles of Chemistry ؟

Atom:

  Constitute a corn base unit in the science of chemistry as a whole, and is considered the nucleus core component of the atom, and be shipped positive, and consists nucleus of protons and neutrons and electrons that play an important role in the equation of positive charge, which is the smallest unit at all, attributable to the function enabling element to retain chemical Boukoas , as energy ionization, oxidation, electrical and Alsalbah.

Item:

It is a group of atoms, characterized by a nucleus containing a fixed number of protons. This number is known as the fixed atomic number. For example, all carbon atoms contain 6 protons, while all elements containing two protons and ninety uranium Is considered an element.

Composite:

Is a certain number of elements interacting with each other, which determines the installation of this chemical compound and its location within the periodic table groups, and also gives him certain properties.

Subject:

  The chemical is characterized by the possession of a set of properties, which is a group of compounds known as species.

Molecule:

  The smallest part of the chemical, which is indivisible and division and features a range of unique characteristics, and have the ability to create a series of interactions with other chemicals.

The Mall:

It is a unit used to measure the amount of substance of the number of atoms or molecules or ions.

Electrolytes and salts:

Is a collection of chemical elements that make up a compound charged, or particles of a material lost electrons one or more, it has acquired a negative material shipments.

Acidic and alkaline:

Acid-base behavior of any chemical known as a production of a chemical with water when dissolved ions hydronium, or ion Alheidroxaad, according Orinos theory.

Phase:

  Is a group of cases that are the chemical system description, and the advantage of possessing the structural properties of the same, under the pressure of the worlds of heat.

Redox:

It is the extent of viability of atoms of materials to respond to the electrons or acquisition of the loss, known as the oxidation process as the acquisition of the electron and the oxidation of materials process, the reduction is the loss of material for electrons and teaching them other material.

Chemical bonds:

  It is the power that brings atoms and interdependence with the molecule, and the types of chemical bonds:

  Links ionic.

  Covalent bonds.

  Polarity links.

  Links metallo.

  Tnasagah links.

Interaction:

Is the integration of a group of molecules process with each other; to produce larger or capable of disintegration and division molecules, and also re-structuring atoms and arranged within a single molecule, and the reaction is to break down the molecules or the formation of chemical bonds.

Balance.

 energy.

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