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Grade 9
Valence
Odds
Mechanics
Density
Properties in chemistry
The structure of the atom
The law of conservation of electric charges
Oxidation state
Periodic law of chemical elements...
Valence
Open lesson "The world around us as...
Formulas
Types of chemical bonds Bonding between electrons
Formulas
The concept of infinitesimal and infinitely large...
The structure of the atom
What is the valency of an atom
Physics
Basic formulas in physics - oscillations and waves
Directory
Diazo compounds: reactions of diazonium salts with nitrogen evolution, synthetic possibilities of reactions Chemical properties
Why are nucleic acids called polymers?
An example of an acid oxide
Amino acids - nomenclature, preparation, chemical properties
Properties of potassium and its interaction with water
The liberation of Vienna by Soviet troops is one of the most brilliant operations of the great war
Oxidation state
Liberation of Warsaw by Soviet troops
Life in the USSR after the war
Preparation for the exam in physics
Soviet submarine K 129
Participation of the USSR, USA and China in the Korean War
British Mandatory Authority in Palestine (1920–1948)
The structure of the atom
Stanislav Petrov - how did a Soviet officer cancel a nuclear war?
Military Intelligence Quartermaster 1st rank in Dashkevich
Negotiations in London and the Anglo-Soviet Treaty - Diplomacy during the war years (1941–1945)
Foods rich in iron
Products of lipid peroxidation
Oxidation of primary alcohols
Physics
Qualitative reaction to glycerin - specific, helping to detect it
Elective course "Chromium and its compounds"
Unsaturated hydrocarbons
Material for preparing for the exam (gia) in chemistry (grade 10) on the topic: arrangement of coefficients in the equations for the oxidation of alkenes with potassium permanganate, occurring in an acidic environment with a break in carbon
Material for preparing for the exam (gia) in chemistry (grade 10) on the topic: arrangement of coefficients in the equations for the oxidation of alkenes with potassium permanganate, occurring in an acidic environment with a break in the carbon chain
What reaction products are typical for the oxidation of aldehydes
Formulas
Law of distribution of attention D
Gas volume under normal conditions
Chemical formulas - Knowledge Hypermarket Examples of determining the composition
Mkt physics all terms. Basic provisions of the ICT. Mass and size of molecules. The amount of substance. Molecular physics. Thermodynamic temperature scale. absolute zero
Names of chemical elements
Philosophical odes of Derzhavin
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