Chemistry Test
Results
#1. Alkaline medium is characteristic of aqueous solution of
#2. Electronic configuration 1s2 2s 2corresponds to a particle of
#3. In order to shift the equilibrium P4(gas) + 6Cl 2 (gas)= 4PCl 3 (gas)+Q towards the reaction product, it is necessary…
#4. The oxidation degree of carbon is equal to +3 in thecompound…
#5. The electronic configuration 1s2 2s2 2p6 3s2 3p 2corresponds toan atom of
#6. The number of electrons in the ion Fe 2+is equal to
#7. The chemical reaction occurs between
#8. Potassium hydroxide KOH reacts with each of two substances…
#9. Among the proposed equations, choose one which corresponds to a redox reaction: 1) SO3 + H2O = H2SO4 2) 2NaHCO3 = Na2CO3 + CO2 + H2O 3) S + O2 = SO2 4) CaCO3 + SiO2 = CaSiO3 + CO2
#10. Interaction of copper(II) chloride with iron is a reaction of
#11. What equation corresponds to the redox reaction?1) BaCl 2+ Na2SO 4= BaSO 4+ 2NaCl; 3) CaO + H2O =Ca(OH)2; 2) 2NaOH + CO 2= Na2CO 3+ H2O; 4) H2SO 4+ Fe = FeSO4+ H2
#12. Common property of copper and iron is their ability to dissolve in
#13. Interaction of magnesium and diluted sulfuric acid Mg + H2SO 4= MgSO 4+ H2is an example of the reaction of
#14. A relative density of sulfur(IV) dioxide SO upon hydrogen H isequal to
#15. The interaction of copper Cu with concentrated sulfuric acidH2SO 4leads to the formation of the following compounds:
#16. Determine the substance whose molar mass is NOT EQUAL to 98g/mol:
#17. A specific feature of amphoteric hydroxides (e.g., Al(OH)3,Zn(OH)2) is their ability to react with
#18. 22 g of carbon(IV) dioxide is…
#19. Brief ionic equation Ba 2+ + CO 32-= BаCO3 corresponds to theinteraction of
#20. Potassium hydroxide KOH can react with each of twosubstances
#21. Amphoteric is an oxide of
#22. Amphoteric properties of aluminum oxide are confirmed by itsreactions with
#23. Carbonic acid H2CO3
#24. Nitric acid HNO 3can react with each of two substances:
#25. A gas having a relative density upon hydrogen H 2equal to 16can be
#26. Amines are derivatives of
#27. What compounds can be the products of hydrolysis of the esterwith the molecular formula С6Н12О2?
#28. Oxidation of propanal leads to the formation of…
#29. Both toluene and benzene can react with
#30. The product of oxidation of propan-1-ol with copper(II) oxide is…
#31. Ethanoic (acetic) acid can react with
#32. What substance can take part in the reaction ofpolymerization?
#33. Glucose can react with
#34. Specify the correct formula of a peptide bond:
#35. A carbon atom in sp3-hybridization state is in the molecule of
#36. Choose two correct statements about chemical reactions:
#37. From the proposed list, choose two effects that WILL NOTAFFECT the rate of the reaction of iron dissolution in hydrochloric acid:
#38. From the proposed list of substances, choose two of themwhich contain only covalent polar bonds:
#39. From the proposed list of substances, choose two of themwhich can react with iron(III) oxide:
#40. The interaction of calcium carbide with water can be attributedto the following types of reactions… (choose two cases)
#41. Choose two oxides that interact with water to form an acid:
#42. From the proposed list of substances, select two of them whichcan react with bromine:
#43. From the proposed list, choose two substitution reactions:
#44. Phenolcan be characterized by
#45. From the proposed list, choose two pairs of organic compoundswhich are STRUCTURAL ISOMERS with respect to each other.
#46. Specify a correspondence between the formula of salt and the product formed on the cathode during the electrolysis of its aqueous solution: • Ca(NO3 )2 • K2SO4 • HgBr2 • CuCl2
#47. Specify a correspondence between the reacting substances and the organic product, which is predominantly formed by the interaction of these substances: • ethanol and sodium • ethyl acetate and sodium hydroxide solution (when heated) • ethanol and copper(II) oxide (when heated) • ethyl acetate and water (when heated, in the presence of a catalyst)
#48. Specify a correspondence between the name of the salt and its relation to hydrolysis: • ammonium • phosphate • sodium carbonate • sodium chloride • potassium sulphide
#49. Specify a correspondence between the reactants and the organic matter that is the reaction product: • acetone and hydrogen • ethanol and copper (II) oxide • propanal and hydrogen • ethanal and ammonia solution of silver(I) oxide
#50. Specify a correspondence between the reactants and the organic matter that is the reaction product: • ethanol and copper(II) oxide • ethanal and ammonia solution of • silver(I) oxide • propanal and hydrogen
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