What are the special nouns of chemistry bar, what are the nouns of chemistry?

1.Element: chemical element2

Compound: compound3Molecule:

molecule4.Nucleon: nucleon5

Ion: ion6Sour:

acid7.Base: base8

neutralization9Chemistry:

chemical reaction10.Reaction rate: reaction rate11

Catalyst: catalyst12Activation Energy:

activation energy13.Redox reaction: redox reaction14

Oxidizing agent: oxidizing agent15Reducing agent:

reducing agent16.Electrochemistry: electrochemistry17

Electrolyte: electrolyte18Ion generation:

ionization19.Covalent bond: covalent bond20

Ionic bond: ionic bond21Isotopes:

isotope22.atomic number: atomic number23

Proton number: proton number24Extranuclear electrons:

valence electron25.Chemical bond: chemical bond26

Organic compounds: organic compound27Protein:

protein28.synthesis reaction29

Decomposition reaction: decomposition reaction30Reactions indefinitely:

equilibrium.

The nouns of chemistry are as follows:

1. Hydrolysis: Hydrolysis is a chemical unit process, which is the process of using water to decompose substances into new substances.

2. Distillation: Distillation is a thermodynamic separation process, which uses the different boiling points of each component in the mixed liquid or liquid-solid system to evaporate the low boiling point components, and then condense to separate the unit operation process of the whole component, which is a combination of evaporation and condensation.

3. Olefins: Olefins refer to hydrocarbons containing C=C bonds (carbon-carbon double bonds).

4. Acetic acid: the chemical formula CH3COOH is an organic monobasic acid, which is the main component of vinegar.

5. Alkanes: Alkanes are a class of organic compounds, the carbon atoms in the molecule are connected by carbon-carbon single bonds, and the rest of the valence bonds are combined with hydrogen to form compounds, which are divided into two categories: naphthenes and paraffins.

6. Strong alkali: The so-called strong alkali and weak alkali are relatively speaking, the alkali can be completely ionized when dissolved in water, and it belongs to strong alkali.

Chemical terms mainly include four parts: chemical symbols, chemical formulas, chemical equations, and chemical diagrams.

1. Chemical symbols, such as element symbols, ion symbols, electronic formulas, etc.

2. Chemical formula, such as the simplest formula, molecular formula, structural formula, etc.

3. Chemical equations, such as thermochemical equations, ion equations, redox reaction equations, etc.

4. Chemical schemas, such as schematic diagram of atomic structure, schematic diagram of ionic structure, orbital representation, electronic configuration, etc.

Materials: The teaching of chemistry terms is an important part of the teaching of basic knowledge of chemistry in middle schools. The purpose of this study is to enable students to understand the special symbols used to express the composition, structure and change laws of substances as stipulated by the international chemical community, master a special tool for learning chemistry, and have the basic skills necessary for learning chemistry.

20 Chemical Element Symbols:Hydrogen, helium, lithium, beryllium, boron (H, He, Li, Be, B).

Carbon, nitrogen, oxygen, fluorine, neon (C, N, O, F, NE).

Sodium, magnesium, aluminum, silicon, phosphorus (Na, Mg, Al, Si, P).

Sulfur, chlorine, argon, potassium, calcium (S, Cl, Ar, K, Ca).

Significance. Chemical symbols and their use of the rules are the unique language of chemistry, is an important tool for chemical science to study the composition, structure and change of substances, is the basis for us to learn chemistry, junior high school chemistry from the very beginning, we should pay attention to and do a good job in the teaching of chemical terms, so that students are accustomed to using the language of chemical symbols, to correctly express the chemical process and the formation of the group, structure and change of the law of the substance, and cultivate students' logical thinking ability.

Element symbols, molecular formulas, and chemical equations are typical structural forms of chemical terms, and the syllabus clearly states: "Students should be able to write, read, and use them, and understand their chemical meaning." That is, to understand, to know, to be right.

In order to overcome these cognitive difficulties, in the teaching process, students must first understand the meaning of the element symbols, and then deepen their understanding in the teaching of material molecular formulas and chemical equations, so as to form a standardized and fixed chemical language, and will use this chemical language to correctly represent and study various chemical change processes and laws.

1. Valency: It is the property of a certain number of atoms of an element and a certain number of atoms of other elements. Its essence is the number of electrons that an atom gains and loses or shares electron pairs when the atoms of an element form a compound.

2. Element symbol: It is represented by the first uppercase letter of the Latin name of the element or an additional lowercase letter.

3. Nuclide composition symbol: The meaning of each letter in the X formula is z for the number of protons, a for the mass, and x for the element symbol.

4. Schematic diagram of the structure of atoms or ions:

It is used to represent the number of protons in the nucleus and nucleus, and the electron shell is represented by an arc, and the number on the arc represents the number of electrons in this electron shell.

5. Electronic formula: use "? " or " " denotes the number of electrons in the outermost shell of the atom. It can also represent the formation process and structure of molecules (or crystals).

6. Molecular formula: It can represent the composition of matter (element type) and the composition of the quantity of matter (atomic number ratio, mass ratio, percentage).

Question 2: What is that chemical term A chemical term is a symbol, formula, or diagram used to express the meaning of chemistry.

1. Such as element symbols, nuclide symbols, ion symbols, atomic structure schematic diagrams, electron configurations, orbital representations, etc.

2. Chemical formula, molecular formula, structural formula, simple structural formula, etc.

3. Verbal expressions, chemical reaction equations, ion equations, ionization equations, electrode reaction equations, thermochemical equations, etc.

Question 3: What are the three chemical terms learned in junior high school chemistry: element symbols, chemical formulas, and chemical equations?

Symbols for elements are unique symbols used to mark an element, and can also represent an atom of such an element, and most solid elements are also commonly represented by element symbols. Element symbols are usually represented by the first letter (uppercase) of the Latin name of an element, such as carbon-c. If the first letter of several element names is the same, add another letter (must be lowercase) in the element name after the first letter (it must be uppercase) to distinguish it, such as chlorine-cl.

The formula that uses element symbols to express the composition and number of atoms of a pure substance is called a chemical formula.

A chemical equation, also known as a chemical reaction equation, is a formula that represents a chemical reaction with a chemical formula. Chemical equations reflect objective facts.

Question 4: What does re mean in chemical terms re chemically.

1.Element symbol: rhenium re English name: rhenium

A mathematical notation for the Reynolds number, a dimensionless number that can be used to characterize the flow of a fluid.

The formula is: re= vd, where v, , and are the flow velocity, density, and viscosity coefficient of the fluid, respectively, and d is a characteristic length.

Question 5: What is the chemical term of acetic acid Solution: Acetic acid is also called acetic acid, and the chemical formula is CH3COOH

Wish! Question 6: What is yellow water in chemical terms A mixture of concentrated HCl and concentrated HNO3 mixed at a volume ratio of 3:1.

Question 7: What are chemical terms that refer to three categories: element symbols (similar ion symbols, etc.), chemical formulas, and chemical equations.

Question 8: Does chemical terms refer to chemical formulas or words Reverse osmosis is currently the most widely used desalination technology in the preparation of high-purity water, and its separation object is the ionic range and molecular weight of hundreds of organic matter in the solution, reverse osmosis (RO), ultrafiltration (UF), microporous membrane filtration (MF) and electrodialysis (ED) technology all belong to membrane separation technology.

In the past 30 years, reverse osmosis, electrodialysis, ultrafiltration and membrane filtration have entered industrial applications, and have developed rapidly, in semiconductors, integrated circuit manufacturing processes, food, and pharmaceutical industries, reverse osmosis is usually used as desalination in the preparation of high-purity water, ultrafiltration is mostly used as post-treatment of water production systems, and membrane filtration is used for pre-treatment and post-treatment of water treatment, and is used to filter particles and bacteria.

Voltage: The difference between the potential between any two points in a circuit is called voltage.

Current: The flow of electrons formed by the directional movement of electrons in a circuit is called current.

Resistance: The property that hinders the flow of current in a circuit is called resistance.

Electromotive force: Inside the power supply, the power supply separates the positive and negative charges and transports them to both ends of the power supply, and the electric potential difference generated by the two ends of the power supply is called electromotive force.

Electrophoresis: Charged particles move under the action of an electric field towards an electrode that is opposite to their electrical properties.

Calcium carbide, i.e. calcium carbide, is used to make acetylene. Calcium carbide gas, i.e. acetylene. Electronegativity, the ability of atoms to bring electrons closer, ionization, bakelite (polyacrylamide) is too much. What more do you want? You can follow up.

1.Electrolyte.

2.Positron.

3.Negative electrons.