16) Согласно вытеснительному ряду кислот, более сильная кислота вытесняет менее сильную кислоту из ее соли: H₂SO₄ HCl HNO₃ H₃PO₄ H₂SO₃ H₂CO₃ H₂S H₂SiO₃a) BaCl₂ + H₂SO₄ →……. . b) Na₂CO₃ + HCl→………. 17) Perform the transformations( запишите по 3 последовательных реакций):A) P→P₂O₅→ H₃PO₄,→ K₃PO₄ b) Li→Li₂O→LiOH→LiNO₃ c) S→SO₂→SO₃→ H₂SO₄ 18) Problem. 80g of divalent metal reacted with HCl and 44,8L of hydrogen gas was formed. Define the metal. Me (II) + HCl →……………. 19) Bases. Differentiate bases into 2 groups: Fe(OH)₃ Mg(OH)₂ Cu(OH)₂ Ca(OH)₂ Ba(OH)₂ KOH NaOHSoluble bases(alkalis)Insoluble bases20) It is true for bases( can be more than 1 correct answer)a)Bases have sour taste b) Bases are soapy to the touch c) Bases are corrosive substances d)NH₄OH ( ammonium hydroxide) is a strong base e) NaOH, KOH are used in the production of soap21) Write dissociation equations of bases:A) NaOH ↔ Na⁺ + OH¯ b) Ca(OH)₂↔Ca²⁺ + 2OH¯ c) Mg(OH)₂↔……… d) LiOH↔……… 22) Insoluble bases decompose into oxide and water:A) 2Fe(OH)₃→Fe₂O₃ + H₂O b) Ca(OH)₂→……. . c) Al(OH)₃→………23) Changing colour of indicators:litmusMethyl orangePhenol phthaleinAlkalis??Dark pink24) Write in formulas and balance (поставить коэффициенты):a) NaOH + CO₂→ Na hydrocarbonate b) NaOH + CO₂→ Na carbonate + water 25) Oxide / base / acid-? A) This substance consists of a) H⁺cations and acid residual anions (анионы кислотного остатка) - ______B) Me⁺- cations and hydroxide anions ( гидроксид анионы) - _______C) element + oxygen - ________ 26) From the substances: BaO, Pb(OH)₂, H₂CO₃, Ca(OH)₂, HNO₃, SiO₂ indicate: A) a strong acid-_____ b) a weak acid- ______ c) alkali-______ d)insoluble base-______ e) acid oxide-______ f) basic oxide-______. 27) Complete the sentence: Salts are complex substances, consisting of metal atoms and_______ ( hydroxide anions / oxygen / acid residual / hydrogen atoms). 28) Differentiate the salts into 3 groups: Na₂SO₄, Zn(OH)Cl, CaHPO₄, K₃PO₄, Al(OH)₂Cl₂, KHSO₄Medium saltsAcid saltsBasic salts29) Write the names of salts by their names:A) Silver(I) bromide______ b) Aluminium phosphate-_____ c) Iron (II) nitrate-______ d) lead (II) sulphide-_____30) Write the formulas of acid residuals:Eg: chloride- Cl¯, phosphate- PO₄³¯A) sulphate- ______ b) silicate-_______ c) sulphide-_______ d) nitrate-______31) Solve the problem: 5,4 g of aluminium reacted with bromine (Br₂) to form salt aluminium bromide. Calculate the mass of salt (g) formed32) Differentiate the salts into 2 groups: AgCl, NaCl, CaBr₂, BaCO₃, CaSO₄, KNO₃ - use the solubility chart (таблицу растворимости)Soluble saltsInsoluble salts33) A more reactive metal can displace a less reactive metal from its saltEg: Zn + Hg(NO₃)₂ = Zn(NO₃)₂ + HgChoose the metals that also can be used for this reaction: Li, Mg, Ca, Fe, Na, Al ( подчеркните)(Помните, что самые активные металлы не берут для реакций с солями и кислотами, те они сразу начинают реагировать с водой )34) Which reactions are possible? (Какие реакции идут до конца?)a)CuCl₂ + 2NaOH = 2NaCl + Cu(OH)₂ b) Ba(OH)₂ + K₂CO₃= BaCO₃ + 2KOH c) NaOH + K₂SO₄ = Na₂SO₄ + 2KOHd) K₂CO₃ + 2HCl = 2KCl + H₂O + CO₂ e) AgNO₃ + KCl = AgCl + KNO₃ f) KNO₃ + MgSO₄ = K₂SO₄ + Mg(NO₃)₂(Помните, что реакция идет до конца, если в результате получается осадок↓, газ↑ или вода )пж пжпжпж пжпжпж можете помочь мне это сор пжпжпж посчитайте