Inorganic chemistry in deryabine reactions online. Schoolboy and Applicant Dreyabina N.E. Chemistry The main classes of inorganic substances. Books that have formed my inner world

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1 Schoolboy and Appiten Dreyabina N.E. Chemistry basic classes of inorganic substances Theoretical basis Questions of the task of reference material Moscow 2010

2 7.6. Acid oxides Acid oxides, which correspond to acid hydroxides. Acid oxides are non-metallic oxides (excluding non-forming CO, NO, N 2 O, SiO, S 2 O) and metal oxides in C.O. +5, +6, +7, +8. In non-metal oxides, the connection between the atoms is covalent polar. Among the oxides of the molecular structure there are gaseous (CO 2, SO 2, N 2 O, NO 2), liquid (volatile SO 3, N 2 O 3), solid (volatile p 2 O 5, N 2 O 5, SEO 2, Teo 2). Solid, very refractory SiO 2 oxide (sand) Substance with an atomic crystal grille. For acid oxides, the name "anhydride" product of water cleavage from the corresponding acid is often used. So, SO 2 - sulfuric acid anhydride H 2 SO 3, SO 3 sulfuric acid anhydride H 2 SO 4, P 2 O 5 Anhydride of three metaphosphor HPO 3 acids, pyrophosphoric H 4 P 2 O 7 and orthophosphoric H 3 PO Chemical properties of acidic oxides 1. Acid oxide + water \u003d acid When dissolved in water of acidic oxides, hydroxides are formed - acids in which the degree of oxidation of nonmetal SO 3 + H 2 O \u003d H 2 SO 4 is preserved (slicing: SiO 2 insoluble in water). SiO 2 + H 2 O in oxides NO 2 and CLO 2 no appropriate acid hydroxides, when dissolved in water, the disproportionation reaction flows, as a result of which the change in C.O. acid-forming element. 2no 2 + H 2 O \u003d HNO 3 + HNO 2 3NO 2 + H 2 O \u003d 2HNO 3 + NO 2CLO 2 + H 2 O \u003d HCLO 3 + HCLO 2 6CLO 2 + 3H 2 O \u003d 5HCLO 3 + HCl when dissolved in water P 2 O 5 Depending on the number of attached water molecules, three acids metaphosphoric HPO 3 may form, pyrophosphoric H 4 P 2 O 7 or ortho P 2 O 5 + 2H 2 O \u003d H 4 P 2 O 7 P 2 O 5 + H 2 O \u003d 2HPO 3 phosphoric H 3 PO 4. P 2 O 5 + 3H 2 O \u003d 2H 3 PO 4 Cro 3 oxide corresponds to two acids - chrome H 2 CRO 4 and dichromova H 2 CR 2 O 7. CRO 3 + H 2 O \u003d H 2 CRO 4 2CRO 3 + H 2 O \u003d H 2 CR 2 O 7 CO 2 and SO 2 oxides react with water reversible, the equilibrium is strongly shifted to the left. 2. Acid oxide + base \u003d salt + water soluble acidic oxides react with bases under normal conditions, insoluble when fusing. SiO 2 + 2NAOH \u003d Na 2 SiO 3 + H 2 O with an excess of acidic oxide, which is an anhydride of polypic acid, an acidic salt is formed. With an excess of multi-acid base - the main one. CO 2 (HAPC) + NaOH \u003d NaHCO 3 P 2 O 5 (HAVE) + 2CA (OH) 2 \u003d 2CAHPO 4 + H 2 OP 2 O 5 (H 2 OH) 2 + H 2 O \u003d Ca (H 2 PO 4) 2 CO 2 + 2MG (OH) 2 (MGOH) 2 (MgOH) 2 CO 3 + H 2 O in oxides NO 2 and CLO 2 no corresponding acid hydroxides, when they interact with alkalis, disproportionation reaction proceeds, as a result which pro- 2no 2 + 2NAOH \u003d Nano 3 + Nano 2 + H 2 O comes Change C. O. acid-forming 2CLO 2 + 2NAOH \u003d NaClo 3 + NaClo 2 + H 2 o element and two salts are formed. 8CLO 2 + 8NAOH \u003d 5NACLO 4 + 3NACL + 4H 2 O Acid oxide CO 2 also reacts with some amphoteric hydroxides (BE (OH) 2, Zn (OH) 2, PB (OH) 2 and CU (OH) 2, also showing Partly amphoteric properties) with the formation of precipitation of the main salts and CO 2 + 2Be (OH) 2 \u003d (BEOH) 2 CO 3 + H 2 O water. CO 2 + 2CU (OH) 2 \u003d (CuOH) 2 CO 3 + H 2 O 26

3 1. Check yourself Exercise 1. Finished the reaction equation. SEO 2 + H 2 OH 2 O + NO 2 (cold) P 2 O 5 + H 2 O CL 2 O 7 + H 2 OH 2 O + Na 2 OH 2 O + CO 2 N 2 O 3 + H 2 O CLO 2 + H 2 O (mountains.) P 2 O 5 + H 2 O (q.) P 2 O 5 (B) + H 2 OH 2 O + SO 3 NO 2 + H 2 O (Mountains) 2 . CO (OH) 3 + P 2 O 5 (Ω) Al (OH) 3 + SO 2 CO 2 (Ω) + NaOH H 2 SO 4 + MGO (MGO) Cao + H 3 PO 4 (BAO) Bao + H 2 SO 4 CO 2 + NaOH K 2 O + Zn (OH) 2 KOH (Mountains) + CLO 2 NO 2 + NaOH Ca (OH) 2 (Ham) + P 2 O 5 SO 3 + KOH KOH + SiO 2 Cu (OH) 2 + CO 2 CSOH + N 2 O 5 CLO 2 + NaOH (cold) Exercise 2. Fill in table. Oxides dissolved in the equation of reaction of the reaction of water oxide of water ions found in solution SO 4 2-, H + NO 2 -, H + Ca 2+, OH - Exercise 3. Write the equations of reactions with the participation of oxides, as a result of which in solution The following ions appeared: a) CO 3 2-, K +; b) NO 3 -, H +; c) h +, po 3 -, d) rb +, oh -; e) NO 3 -, NO 2 -, H +; e) Na +, Cl -? Exercise 4. Make up the equation of reactions corresponding to the schemes: 1) S H 2 S Na 2 S CUS; 2) Fe FEO Fe 2 O 3 Fe 2 (SO 4) 3 BASO 4; + H 2 + H 2 O + CO 2 3) NA CA (OH) Na 2 O 4) AG 2 O) Main Oxide Squake Salt 6) Acid Oxide H 2 O Base 7) Acid Acid Oxide Water 8) CLO 2 NACLO Acid 2 Exercise 5. In the proposed series, exclude (cross out) one excess formula is such that does not forms with the rest of the homogeneous group. Explain your choice. a) N 2 O, NO 2, N 2 O 3; b) NO 2, N 2 O 3, N 2 O 5; c) sro, sno, cro; d) CO 2, SO 2, SiO 2; d) SO 2, NO 2, CLO 2; e) Mn 2 O 7, P 2 O 5, XEO 4; g) HPO 3, H 3 PO 3, H 3 PO 4, H 4 P 2 O 7; h) Naclo 2, NaClo 3, Naclo 4. 27

4 7.7. Chemical properties of acid oxides (continued) 3. Acid oxide + main / amphoteric oxide \u003d salt In these reactions, the element from the main / amphoteric oxide forms a cation, and an element of an acid anion salt, amphoteric oxides in this case exhibit the properties of the main. Reactions between solid oxides are when fusing. Amphoteric and NEAS Creatible in the water The main oxides interact only with solid and liquid ki- p 2 O 5 + 3Cuo \u003d Cu 3 (PO 4) 2 SiO 2 + Bao \u003d Basio 3 bedding oxides. 3SO 3 + Al 2 O 3 \u003d Al 2 (SO 4) 3 4. Acid oxide non-volatile + salt \u003d salt + non-volatile acid oxides are displaced when fusing volatile acid oxides from their salts. Acid oxide Flying SiO 2 + CaCo 3 \u003d Casio 3 + CO 2 P 2 O 5 + Na 2 CO 3 \u003d 2NA 3 PO 4 + 3CO 2 3SIO 2 + Ca 3 (PO 4) 2 \u003d 3Casio 3 + P 2 O 5 5 . Acid oxides extremely rarely interact with each other or with acids. For example, phosphoric anhydride P 2 O 5 The strongest dehydrating agent intersects with anhydrous oxygen-containing acids with the formation of HPO 3 and anhydride of the corresponding acid. P 2 O 5 + 2HCLO 4 (anhydrous) \u003d Cl 2 O 7 + 2HPO 3 P 2 O 5 + 2HNO 3 (anhydrous) \u003d N 2 O 5 + 2HPO 3 Some oxidative-reducing reactions of acid oxides A. Recovery. At high temperatures, some non-metals (C, H 2) restore oxides (partially or completely). To restore non-metals from their oxides, and magnium is often used. CO 2 + 2MG \u003d C + 2MGO SiO 2 + 2mg \u003d Si + 2mgo N 2 O + Mg \u003d N 2 + MgO 2CO 2 + 5CA \u003d CAC 2 + 4CAO B. Oxidation. Under the action of oxygen (ozone) when heated or in the presence of a catalyst, the lower oxides go to higher. NO + O 3 \u003d NO 2 + O 2 SO 2 + O 3 \u003d SO 3 + O 2 2NO 2 + O 3 \u003d N 2 O 5 + O 2 CO 2 + C \u003d 2CO SiO 2 + C \u003d SiO + Co SO 3 + C \u003d SO 2 + CO SO 2 + C \u003d S + CO 2 2N 2 O + C \u003d 2N 2 + CO 2 2NO + C \u003d N 2 + CO 2 2NO 2 + 2C \u003d N 2 + 2CO 2 P 2 O 5 + 5C \u003d 2p + 5Co H 2 O + C \u003d H 2 + CO N 2 O + H 2 \u003d N 2 + H 2 O 2NO + 2H 2 \u003d N 2 + 2H 2 O, KA CO 2 + 4H 2 \u003d CH 4 + 2H 2 O 2CO + O 2 \u003d 2CO 2, KA 2SO 2 + O 2 \u003d 2SO 3 P 2 O 3 + O 2 \u003d P 2 O 5 2NO + O 2 \u003d 2NO 2 2N 2 O 3 + O 2 \u003d 2N 2 O 4 In addition to the listed, oxides enter into other redox reactions, for example: SO 2 + NO 2 \u003d NO + SO 3 4NO 2 + O 2 + 2H 2 O \u003d 4HNO 3 N 2 O + 2CU \u003d N 2 + CU 2 O 2SO 2 + 2NO \u003d N 2 + 2SO 3 2N 2 O 5 \u003d 4NO 2 + O 2 2NO + 4CU \u003d N 2 + 2CU 2 O SO 2 + 2H 2 S \u003d 3S + 2H 2 O 2NO 2 \u003d 2NO + O 2 N 2 O 3 + 3CU \u003d N 2 + 3CUO 2SO 2 + O 2 + 2H 2 O \u003d 2H 2 SO 4 2CO 2 + 2NA 2 O 2 \u003d 2NA 2 CO 3 + O 2 3N 2 O + 2NH 3 \u003d 4N 2 + 3H 2 O 10NO 2 + 8P \u003d 5N 2 + 4P 2 O 5 2NO 2 + 4Cu \u003d N 2 + 4Cuo N 2 O 5 + 5CU \u003d N 2 + 5CUO 28

5 3. Check yourself Exercise 1. Finished the reaction equation. Cao + SO 2 CO 2 + Bao N 2 O 3 + Na 2 O MGO + SO 3 sro + P 2 O 5 CO 2 + Cuo Li 2 O + Al 2 O 3 Al 2 O 3 + SiO 2 SiO 2 + Zno Beo + Na 2 ON 2 O 5 + Na 2 O CO 2 + SO 2 4. Na 2 CO 3 + SiO 2 SiO 2 + MgSO 3 CO 2 + Casio 3 K 2 CO 3 + SO 2 Na 3 PO 4 + SiO 2 Na 2 CO 3 + P 2 O 5 5. CO 2 + MG MG + SiO 2 P 2 O 5 + H 2 SO 4 HNO 3 + P 2 O 5 SO 3 + CH 2 O + C NO 2 + O 2 + H 2 O SO 2 + O 3 HCl + P 2 O 5 NO + O 2 Na 2 O + O 2 K 2 CO 3 + SiO 2 H 2 O + C NO 2 + H 2 O (Mountains CO 2 + NaOH K 2 O + Zn (OH) 2 sro + p 2 O 5 CO 2 + C Cu 2 O + O 2 Na 2 O + O 2 H 2 + CO 2 H 2 O + CO Al 2 O 3 + C Na 2 O + C CO 2 + Na 2 O 2 CO 2 + H 2 O Na 2 O + H 2 O Zno + Cu Exercise 2. Composition of the equation of reactions corresponding to the schemes: 1) SO 2 SO 3 H 2 SO 4 BASO 4; 2) SO 3 SO 2 Na 2 SO 3; 3) N 2 NO NO 2 Nano 3; 4) P P 2 O 3 P 2 O 5 x H 3 PO 4; 5) HNO 3 N 2 O 5 Nano 3; 6) C CO 2 Na 2 CO 3 CO 2 Ca (HCO 3) 2; + O 2 + o 2 + H 2 O + H 2 O + Ca (OH) 2 7) Ca 3 (PO 4) 2; + O 2 + H 2 S + O 2 + O 3 + Al 2 O 3 + Ba (OH) 2 + HCl 8) s; + O 2 + O 2 + KOH + KOH + HCl + Mg + CO 2 9) C

6 CONDUCTION 1. Classification of inorganic substances The degree of oxidation in inorganic chemistry The nomenclature of inorganic substances names of simple substances names of binary compounds of bases of bases, amphoteric hydroxides, acids and salts Classes of inorganic compounds in terms of electrolytic dissociation of acid, base and amphoteric hydroxides as an electrolyte average, Sour and basic salts as electrolytes of the classification of chemical reactions. Conditions of the reaction of ion exchange Simple substances Metals and non-metals Some physical properties of simple substances Some chemical properties Simple oxide substances Classification of oxide oxides and appliances Hydroxides Non-forming oxides Main oxides Chemical properties of main oxides Acid oxides Chemical properties Acid oxides Amphoteric oxides Chemical properties of amphoteric oxides Base Classification Classification Chemical properties Acid Classification Acid Chemical properties Amphoteric amphoterity hydroxides. Amphoteric Hydroxides Chemical properties of amphoteric hydroxides salts Classification of salts Chemical properties of salts Genetic bond between the classes of inorganic compounds Methods for producing oxides, bases, amphoteric hydrocyides, acids and salts The main methods for producing oxides Basic methods for producing bases, amphoteric hydroxides Methods for obtaining salts app

Repetition A9 and A10 (properties of oxides and hydroxides); A11 Characteristic chemical properties of salts: medium, sour, equipped; integrated (on the example of aluminum and zinc compounds) A12 interrelation of inorganic

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1 Dreyabina N.E. Inorganic chemistry in exercises and tasks Tutorial to teach high school class of the city of IPO "Nikitsky Gate" Moscow 2012

2 UDC 546 BBK 24.1 D36 D36 Dreyabina N.E. Inorganic chemistry in exercises and tasks. - M.: IPO "Nikitsky Gate", 2012, - 32 s. ISBN allowance is a collection of exercises and tasks on the most important section of inorganic chemistry to the main classes of inorganic compounds. Included with the mini-navel "inorganic chemistry in reactions", the material from which will help students perform the proposed exercises. It is recommended for secondary school students (base level). ISBN Dreyabina N.E., 2012

3 1. Classification of inorganic substances 1.1. Metals and non-metals 1. In the periodic table shown on the cover, planting a yellow cell with non-metal elements. 2. Underlighten the symbols of non-metals: N, Na, NE, H, HF, HE, B, BA, BR, S, SR, SI, SE, OS, O, C, CS, CD, CL, CU, FR, F, AL, AT, AR, AS, AG. Write symbols: a) alkali metals; b) alkaline earth metals (see the list of group names of chemical elements on page 9 of the mini-navigator "Inorganic chemistry in reactions"). 3. Wrong on one character of the element-metal and elementetal located in the periodic table: a) near; b) in the same group; c) in one subgroup; d) in one period. 4. Symbols of which element-metal and non-metal element consist of identical letters? 5. Write the characters: a) non-metals with constant C.O. ; b) Metals with constant C.O. 6. Which metal forms a simple substance: a) red; b) yellow; c) Liquid with N.? Which nonmetall forms with N.The: a) a gaseous poisonous simply green-green substance; b) a simple substance in the form of violet crystals with a metal glitter; c) a simple substance in the form of solid transparent crystals capable of cutting glass? 7. Two student played chemical "noliki crossbars." The first was recorded in the cell symbols of metals, second non-metals (according to the rules of the game the elements are not repeated). Which of them won? N Na Zn Cl HG Ge O HE Al SI S SR Pb Ca F TE Br TE N Fe Co Br SE RB AR CS BA SN AG AU C 3

4 1.2. Oxides, hydroxides, salts 8. Find errors in definition: "Oxides Complex substances consisting of two elements, one of which oxygen." What kind significant signs The concepts of "oxides" are not specified in the definition? What signs can be removed from the definition? Write the correct definition. Oxides - 9. Emphasis of oxide formulas: H 2 O, CO, O 2, N-ON, AS +3 2O 3, N-O-O-H, P 2 O 5, P 2 O 3, O 3, SO 2, OF 2, I 2 O 7, HCLO, SO 3, KO 2, KO 3, P 4 O 6, P 4 O 10, H 2 CO, Ho 2, Ho 2-2, Ho -1 2, ho , X 2 O. 10. Finished the scheme of the classification of oxides (see the Minister of Inorganic Chemistry in Reactions, "p. 1). Non-metal oxide metal oxide into the degree of oxidation +2 the remaining non-aging oxide acid amphoterous base salt forming oxide can form atoms to form oxides: a) non-forming; b) acidic; amphoteric? 2. Can non-metallic atoms forging oxides: a) amphoteric; b) basic; c) Non-forming? 3. Can Ho Oxide be: a) acid; b) amphoteric; c) the main; non-forming? 4. Can oxide x 2 o 3 be: a) acid; b) amphoteric; c) the main; non-forming? Check yourself the number of positive responses throughout the exercise should be equal to the composition of formula and sign the nature of oxides: a) nitrogen (C.O. +1, +2, +3, +5); b) chlorine (C.O. +1, +3, +5, +7); four

5 2. Chemical properties of some classes of inorganic substances 2.1. Properties of basic and acidic oxides 25. Look in the mini-thewriter "Inorganic chemistry in reactions" as oxides interact with water. Crossings of the formula of oxides that are not reacting with water: Na 2 O, SO 2, MGO, SiO 2, Cuo, P 2 O 5, Ag 2 O, H 2 O, Bao, Fe 2 O 3, CO, SEO 3. What oxides Metals interact with water? 26. Get acquainted with PD and understand how to make the equations of reactions with the help of a minion. Program of activity 3 "Drawing up the reaction equations with the help of a miniature" Inorganic chemistry in reactions "Program activity Example of execution: 1. Refer to the task in the notebook. Na 2 O + H 2 O 2. Under the formulas of substances to sign the name of classes, to which the main water Na 2 O + H 2 o rim they belong. Oxide 3. In the minimalock find the appropriate scheme turning the main + water alkali "Main oxides" scheme 1: oxide. 4. Check whether the proposed substances can respond in such a way (see the reaction description under the scheme) 5. Determined the other participants in the reaction, write them into the scheme. 6. Pass stoichiometric coefficients. So the alkaline and alkaline earth metal oxides react so. NA 2 on alkali metal oxide, interacts with water. Na 2 o oxide corresponds to the base Naone Na 2 O + H 2 O Naone Na 2 O + H 2 O 2Naone 27. Finished the equation of possible reactions. 1. (see the ministry, schemes 1 of sections "Main oxides", "Acid oxides") Cao + H 2 OP 2 O 5 + H 2 O MGO + H 2 OH 2 O + Na 2 OH 2 O + CRO N 2 O 3 + H 2 O CS 2 O + H 2 OH 2 O + SO 3 11

6 SEO 2 + H 2 OH 2 O + K 2 O Feo + H 2 O Bao + H 2 OH 2 O + SiO 2 H 2 O + CO 2 2. (see the ministerial, circuits 2 sections "Main oxides", " Acid oxides ") Na 2 O + HCl CSOH + N 2 O 5 CRO + HNO 3 Bao + H 2 SO 4 CO 2 + NaOH SO 3 + KOH Cao + H 3 PO 4 HBr + Cuo Ca (OH) 2 + P 2 O 5 COO + H 2 SO 4 H 2 SO 4 + MGO CO 2 + NH 4 OH HCl + Bao Co + NaOH 3. (see the ministerial, schemes 3 sections "Main oxides", "Acid oxides") CAO + SO 2 CO 2 + SO 2 MGO + SiO 2 MGO + SO 3 BAO + P 2 O 5 AL 2 O 3 + SiO 2 Na 2 O + N 2 O 5 BEO + NA 2 OK 2 O + AL 2 O 3 NA 2 O + Li 2 OP 2 O 5 + SRO N 2 O 3 + K 2 O Al 2 O 3 + Cao Cao + CO 2 CO 2 + Bao Cao + NO 4. (see the ministry, a scheme 4 of the "Main oxides" section) Cao + H 3 PO 4 BE (OH) 2 + Cuo Cao + Al (OH) 3 K 2 O + Zn (OH) 2 CO + KOH SN (OH) 2 + Na 2 O Al 2 O 3 + PB (OH) 2 Feo + Al (OH) 3 CS 2 O + Al (OH) 3 Li 2 O + Zn (OH) 2 5. (see the minimage, scheme 4 of the section "Acid oxides") Na 2 CO 3 + SiO 2 SiO 2 + MgSO 3 CO 2 + Casio 3 K 2 CO 3 + SO 2 Na 3 PO 4 + SiO 2 Na 2 CO 3 + P 2 O 5 12

7 28. Finished the reaction equation with the participation of oxides: a) Cao + Caso 4; d) Na 2 CO 3; b) sao + ... caso 4 + h 2 o; e) ... + koh ... + k 2 SO 3; c) + ba (oh) 2; e) MgCl how many acids can be obtained by adding to water: a) nitrogen oxide (V); b) phosphorus oxide (V); c) zinc oxide; d) nitrogen oxide (II); e) chloride; e) sodium oxide; g) carbon monoxide? Check ourselves the total number of acids should be equal to the composition of the reaction equations corresponding to the schemes (each reaction comes with the participation of one or more oxides). a) SO 3 H 2 SO 4 BASO 4; b) Na 2 O NaOH Na 2 CO 3 Na 2 SiO 3; c) SO 2 H 2 SO 3 K 2 SO 3 SO 2 K 2 SO 3; d) HCl H 2 O H 2 SO 4 Caso 4; d) Caco 3 CO 2 K 2 CO 3 K 2 SiO 3; e) CO 2 Na 2 CO 3 CO 2 CACO 3.; g) acidic acid water oxide; h) base oxide salt acid oxide; and) Acid oxide water alkali. 31. Suggest method: a) allocating magnesium oxide from its mixture with potassium oxide; b) selection of silicon oxide from its mixture with phosphorus oxide (V). 32. Underline the names of hydroxides, which can be obtained in the interaction of oxides with water: sulfuric acid, ammonium hydroxide, aluminum hydroxide, flintic acid, hydroxide of iron (II), phosphoric acid, soof acid, copper hydroxide (II), sodium tetrahydroxide, hydroxochloride Magnesium, potassium hydroxide. Check yourself the number of underlined names should be equal to 3. 13

8 SEO 2 + H 2 OH 2 O + K 2 O Feo + H 2 O Bao + H 2 OH 2 O + SiO 2 H 2 O + CO 2 2. (see the ministerial, circuits 2 sections "Main oxides", " Acid oxides ") Na 2 O + HCl CSOH + N 2 O 5 CRO + HNO 3 Bao + H 2 SO 4 CO 2 + NaOH SO 3 + KOH Cao + H 3 PO 4 HBr + Cuo Ca (OH) 2 + P 2 O 5 COO + H 2 SO 4 H 2 SO 4 + MGO CO 2 + NH 4 OH HCl + Bao Co + NaOH 3. (see the ministerial, schemes 3 sections "Main oxides", "Acid oxides") CAO + SO 2 CO 2 + SO 2 MGO + SiO 2 MGO + SO 3 BAO + P 2 O 5 AL 2 O 3 + SiO 2 Na 2 O + N 2 O 5 BEO + NA 2 OK 2 O + AL 2 O 3 NA 2 O + Li 2 OP 2 O 5 + SRO N 2 O 3 + K 2 O Al 2 O 3 + Cao Cao + CO 2 CO 2 + Bao Cao + NO 4. (see the ministry, a scheme 4 of the "Main oxides" section) Cao + H 3 PO 4 BE (OH) 2 + Cuo Cao + Al (OH) 3 K 2 O + Zn (OH) 2 CO + KOH SN (OH) 2 + Na 2 O Al 2 O 3 + PB (OH) 2 Feo + Al (OH) 3 CS 2 O + Al (OH) 3 Li 2 O + Zn (OH) 2 5. (see the minimage, scheme 4 of the section "Acid oxides") Na 2 CO 3 + SiO 2 SiO 2 + MgSO 3 CO 2 + Casio 3 K 2 CO 3 + SO 2 Na 3 PO 4 + SiO 2 Na 2 CO 3 + P 2 O 5 12

9 28. End of the equation of reactions with the participation of oxides: a) SAO + CASO 4; d) Na 2 CO 3; b) sao + ... caso 4 + h 2 o; e) ... + koh ... + k 2 SO 3; c) + ba (oh) 2; e) MgCl how many acids can be obtained by adding to water: a) nitrogen oxide (V); b) phosphorus oxide (V); c) zinc oxide; d) nitrogen oxide (II); e) chloride; e) sodium oxide; g) carbon monoxide? Check ourselves the total number of acids should be equal to the composition of the reaction equations corresponding to the schemes (each reaction comes with the participation of one or more oxides). a) SO 3 H 2 SO 4 BASO 4; b) Na 2 O NaOH Na 2 CO 3 Na 2 SiO 3; c) SO 2 H 2 SO 3 K 2 SO 3 SO 2 K 2 SO 3; d) HCl H 2 O H 2 SO 4 Caso 4; e) Caco 3 CO 2 K 2 CO 3 K 2 SiO 3; e) CO 2 Na 2 CO 3 CO 2 CACO 3.; g) acidic acid water oxide; h) base oxide salt acid oxide; and) Acid oxide water alkali. 31. Suggest method: a) allocating magnesium oxide from its mixture with potassium oxide; b) selection of silicon oxide from its mixture with phosphorus oxide (V). 32. Underline the names of hydroxides, which can be obtained in the interaction of oxides with water: sulfuric acid, ammonium hydroxide, aluminum hydroxide, flintic acid, hydroxide of iron (II), phosphoric acid, soof acid, copper hydroxide (II), sodium tetrahydroxide, hydroxochloride Magnesium, potassium hydroxide. Check yourself the number of underlined names should be equal to 3. 13

10 33. Underlowing the formulas that reacts: a) carbon oxide (IV): HCl, Mg (OH) 2, Cao, H 3 PO 4, SiO 2; b) calcium oxide: NaOH, H 2 O, SO 2, S 2 O, CO 2, MGO; c) phosphorus oxide (V): HCl, Ca (OH) 2, H 2 O, H 3 PO 4, Na 2 CO 3? Write the equations of the corresponding reactions. 34. Which of the listed substances can respond in pairs to each other: a) SO 2, P 2 O 5, HCl, Cao; b) Na 2 O, Cuo, HCL, N 2 O; c) K 2 O, CO, BAO, P 2 O 5? Composition of the equation of reactions. Check out all the reaction equations should turn out. 35. Using the minion (sections "Main oxides" and "acid oxides"), determined which substances are encrypted with letters (if several options are possible to offer one). 1. A + B H 2 SO 4; A + b naoh; B + in G. 3. A + B Basio 3; B + in Basio 3 + g; G + and V. 2. A + H 2 O b; B + SO 2 B + H 2 O (in the composition of the atoms of three elements, one of which potassium). 4. A + B B; B + g d + a; A + e b + n 2 o; B + H 2 O E (the substance is called the soda soda, the substance is insoluble in water). 5. H 2 O A (contains 6 atoms) H 2 O b (3 atoms) H 2 O in (8 atoms) g (13 atoms). 36. In the proposed series, exception (cross out) one excess formula - such that does not forms with the rest of the homogeneous group: a) N 2 O, NO 2, N 2 O 3; b) CO 2, SO 2, SiO 2; c) sro, sno, cro; d) Mn 2 O 7, P 2 O 5, CRO 3. Explain your choice. 37. Using only reactions occurring with the participation of oxides, get the maximum possible number of ways: a) sodium sulfate; b) water; c) Sulfit potassium; d) calcium carbonate. fourteen

11 89. Salt A - white, well-soluble in water compound. With an increase in the aqueous solution, a white precipitate is formed and silver nitrate. When the NaOH solution drops, a white studio of the scene is formed by drops of a solution of NaOH. When there is a white reflecting substance C, the hardness is approaching diamond. Write the reaction equations. Why is it added dropwise for education in NaOH? 90. A simple gaseous substance A yellow-green color with a sharp odor reacts with a metal in red to form a salt C. When an alkali alkali is accelerated with a blue shape of the precipitate. Write the reaction equations. 91. A simple substance containing element X, which is part of the thyroid gland, when interacting with the gaseous substance Y, forms a strong acid Z. Z enters into the exchange reaction with a precious metal nitrate with the formation of a yellow sediment. Write the equations of the described reactions. 92. Under the action of a solution of HCl on an aqueous solution of salt A, a colorless gas is distinguished in with an unpleasant smell, when the lead is a black precipitate for a solution of lead through a solution of lead nitrate. Bring the reaction equations. 93. Batty acid A during neutralization of KOH gives salt in, which, with calcination, it releases gas that supports burning, and another Sol C. Write the reaction equations. CONTENTS 1. Classification of inorganic substances Metals and non-metals oxides, hydroxides, salts 4 2. Chemical properties of certain classes of inorrug-11 nichens 2.1. Properties of basic and acidic oxides of the reaction of ion exchange (RIO) in solutions of electrolyte properties of bases and acid properties of salts of acid interaction with metals Additional tasks 31 32

Schoolboy and Applicant Dreyabina N.E. Chemistry Basic Classes of Inorganic Substances Theoretical Basics Issues Exercise Tasks Reference Material Moscow 2010 7.6. Acid oxides Acid oxides

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Inorganic chemistry in deryabine reactions online. Schoolboy and Applicant Dreyabina N.E. Chemistry The main classes of inorganic substances. Books that have formed my inner world

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