- •2. Preparing of basic oxides and their interaction with water and acids.
- •3. Obtaining of acid oxides and their interaction with water and bases.
- •Add a few drops of alkali solution to the obtained solution until the indicator changes its colour. What will happen? Write down equation of the reactions.
- •4. Obtaining of neutral, acidic and basic salts and their interaction with acids, alkalis and other salts.
- •Hydrogen, oxygen Themes for home preparation
- •Make up the equations of the reactions:
- •Chemical properties of hydrogen
- •Themes for home preparation
- •Make up the equations of the reactions
- •2. Chemical properties of alkali metals
- •Themes for home preparation
- •Make up the equations of the reactions
- •2. Chemical properties alkaline earth metals
- •Laboratory work 5
- •Make up the equations o f the reactionss
- •2. Chemical properties of fluorine, chlorine and their compounds
- •Make up the equations o f the reactionss
- •2. Chemical properties of bromine, iodine and their compounds
- •Make up the equations o f the reactionss
- •2. Chemical properties of sulfur and of its hydrogen compounds
- •3. Chemical properties of oxygen compounds of sulfur
- •Themes for home preparation
- •Make up the equations o f the reactionss
- •2. Chemical properties of hydrogen compounds of nitrogen
- •Nitrogen. Oxygen compounds of nitrogen Themes for home preparation
- •Make up the equations o f the reactionss
- •2. Chemical properties of oxygen compounds of nitrogen
- •Phosphorous
- •Make up the equations o f the reactionss
- •2. Chemical properties of phosphorous and it of compounds
- •Laboratory work 11 carbon, silicon Themes for home preparation
- •Make up the equations o f the reactionss
- •2. Chemical properties of carbon
- •3. Chemical properties of silicon
- •Laboratory work 12 germanium, tin, lead Themes for home preparation
- •Make up the equations o f the reactionss
- •2. Chemical properties of tin
- •3. Chemical properties of lead
- •Boron, aluminium, gallium, indium, thallium Themes for home preparation
- •Make up the equations o f the reactionss
- •2. Chemical properties of boron
- •3. Chemical properties of aluminium
- •Make up the equations o f the reactionss
- •2. Chemical properties of titanium
- •Make up the equations o f the reactionss
- •2. Chemical properties of chrome
- •3. Chemical properties to molybdenum and tungsten
- •Make up the equations o f the reactionss
- •2. Chemical properties of manganese
- •Iron, cobalt, nickel
- •Make up the equations o f the reactions
- •2. Chemical properties of iron
- •3. Chemical properties of cobalt
- •4. Chemical properties of nickel
- •Make up the equations o f the reactionss
- •2. Chemical properties of copper
- •3. Chemical properties of silver
- •Laboratory work 18
- •Make up the equations o f the reactions
- •2. Chemical properties of zinc
- •3. Chemical properties of cadmium
- •4. Chemical properties of mercury
Nitrogen. Oxygen compounds of nitrogen Themes for home preparation
Oxides of nitrogen. Obtaining, structure of molecules, properties. Chemical character of oxides, their relation to water and acids. Nitrous acid. Obtaining, acid-base and oxidation-reduction properties. Nitrites.
Nitric acid. Obtaining, structure of molecule, acid-base and oxidising properties. Impact of nitric acid on metals and non-metals. Nitrates, their properties, thermal decomposition.
Oxyhalogenides and halogenides of nitrogen, obtaining and properties.
Questions and tasks
1. Give the names of all known oxides of nitrogen and describe their acid-base nature.
2. How is nitrogen (II) oxide received?
3. Give some equations of the chemical reactions of nitrogen (ІІ) oxide obtaining.
4. What electronic structure has the molecule NO from the point of view of the molecular orbitals method? Is this molecule paramagnetic?
5. What amount (in grams) of copper can be dissolved in a solution in 60 mls of the 33% nitric acid solution (= 1,2 g/cm3)? What volume of NO will be evolved at standard conditions?
6. How is nitrogen (IV) oxide received? At what conditions and why does its dimerization occur?
7. How does NO2 react with cold, hot water and alkalis? Give the equations of the relevant reactions.
8. How is it possible to obtain oxides N2O3 and N2O5? Give the equations of the relevant reactions.
9. What amount of KNO2 (in grams) is necessary to remove all iodine from 10 mls of a 15% KI solution (= 1,12 g/cm3), acidified with diluted sulfuric acid?
10. How is nitric acid obtained in industry?
11. What structure has the molecule of nitric acid? What is the influence of the peculiarities of the structure of the molecule on acid-base and oxidising properties of this acid?
12. How does nitric acid react with metals? How does the mechanism of this process depend on the acid concentration and metal activity? Can this reaction proceed without evolving of gas? Give the equations of the relevant reactions.
13. How do the processes of nitrates thermal decomposition proceed? What factors influence them?
14. What is "aqua regia"? Why does this mixture dissolve noble metals unlike nitric acid? Give the equations of the reactions.
Make up the equations o f the reactionss
NH3 + O2 =
N2 + O2 =
N2О
N2О + H2 =
N2О + NH3 =
N2О + H2SO3 =
NO + O2 =
NO + Cl2 =
NO + Br2 =
NO + H2 =
NO2 + H2O =
NO2 + O2 + H2O =
NО2 + NaOH =
NO2 + O3 =
HNO2 + HJ =
HNO2 + KMnO4 + H2SO4 =
HNO2 + K2Cr2O7 + H2SO4 =
Cu + НNО3 (concentrated) =
Zn + НNО3 (diluted) =
Mg + HNO3 (very diluted) =
NaNO3 + MnO2 + KOH
HNO3 + HCl =
KNO3
Pb(NO3)2
AgNO3
Experimental section
1. Materials and equipment: copper sawdust, copper shaving, metal tin, crystalline ammonium nitrate, potassium nitrate, manganese (IV) oxide, potassium hydroxide, copper (ІІ) nitrate, solutions of litmus, sulfuric acid, nitric acid, sodium nitrate, potassium dichromate, potassium iodide, concentrated hydrochloric and nitric acid, exsiccator, 100 mls beakers, test tubes, glass rods, microspatulas.