Synthesis Reactions and Decomposition Reactions Worksheet Key, Exercises of Chemistry

Download Synthesis Reactions and Decomposition Reactions Worksheet Key and more Exercises Chemistry in PDF only on Docsity! Worksheet #1 COMPOSITION (SYNTHESIS) REACTIONS IF TIE REACTANTS ARE: a. no elements 6. one element and a compound containing thet element e, water and a metal oxide d. water and a nonmetal oxide ..- you probably have a composition reaction. GENERAL EQUATION: A + B > AB [ Element, + Element; > Compound | APPLY THES! ES TOC $ metal + nonmetal > salt nonmetal oxide (acid anhydride) + water => ternary acid (main versions) metal oxide (basic anhydride) + water => metal hydroxide metal chloride + oxygen = metal chlorate nonmetal oxide + metal oxide => salt (with polyatomic inn} metal oxide + carbon dioxide = metal carbonate . compound + element already in compound => compound w/ element at higher oxidation state note: oxidation numbers never change unless rule 7 applies! 8. metal + oxygen => metal oxide Awe STATES OF MATTER IN COMPOSITION REACTIONS: nonmetal oxides (g) metal oxides (s) salts (s) water (I} acid (aq) individual elements (look at periodic chart for state) if one reactant is water, then the praduct could be aqueous (aq) THE DIATOMICS: H, Nz, 02, Fz, Ch, Brz, Il DIRECTIONS; Determine the products of each reaction and balance the equation. Indicate all states. Place the rule number for each ta the right af each problem, Use the main version of the ion. Liti+ beer IL. Si +) Br = ods 23Mg + N> 3 0 + = 3.08 + Nak H NV 13, b + Cho=QLC) A 80, + HOS A PO; + HO =. 5. Mn + Ch=_My Cl. Isfre +30, 2 Fe, 0 6 Sb + Bu SbBs x BaQ + HO > XX CaCl + 01. => 17.2Ag + 0. = Ag, 0 ; g. Al + No=2 AiAS Xe CO + 0; => 9 Pb + ch=_ PbO, 4. NaO + HOS 4B FeO + CO, = 2», cu + sa_ Cy Chemical Equations page 1  Worksheet #2 DECOMPOSITION REACTIONS RULES IF THE REACTANT IS A SINGLE COMPOUND, THE REACTION IS A DECOMPOSITION REACTION. GENERAL EQUATION: AB > A+B | Compound > Element, + Element; | APPLY THESE RULES TO DECOMPOSTION REACTIONS: salt > metal + nonmetal ternary acid => nonmetal oxide (acid anhydride) + water metal hydroxide => metal oxide (basic anhydride} + water metal chlorate => metal chloride + oxygen salt (with polyatomic ion) = nonmetal oxide + metal oxide metal carbonate => metal oxide + carbon dioxide metal oxide => metal + oxygen hydrated salts => anhydrous salt + water NAY Pe hye STATES OF MATTER IN DECOMPOSITION REACTIONS: nonmetal oxides (g) metal oxides (s) salts {s) water as a product (g) water as a reactant (1) acids (aq) individuat elements (look at periodic chart for state) THE DIATOMICS: 2, Nz, Op, F2, Ch, Br:, L; DIRECTIONS: Determine the products of each reaction. Balance the equation. Indicate the states of matter on all reactants and products. Place the rule number for each to the right of each problem, 1.2, ZnCO; >2Z, 22 C 43 d, 11. 2Ag,0 =. 1Ag . 2 2. Ba(Cl0): > Bs - Cle +3 9 12. Fe(OH): = Fe + Db + H 31 Sh0; 45h +50, 13.9PBr => P + SB 4.2, CaCO, >ICg DCL 36, 14, CuSO, S10 = Cy e § 10H. +78 S.UKCIOy aK a 15. Mg(OH)3 => Me - OH 6.00; LHL C £3 Z ear, =3H, ¢ Pe 4o 7. BaOH); > Ra dt Q, + H, I7QAIOH); > 2 A) be 3 L, 32H B.. Hed =) He i 8 18. Zn(NO;)2 > Za £ NV, 3 a 9. uNacl>_ Ne 2 ¢/ 19. CalPO.=>__Cq + 2 P+4 ©. 0. HS0,>_ H+ ¢ 420 20.N00,> Ng 2 O, Chemical Equations page 2 DOUBLE REPLACEMENT REACTIONS Complete and balance the following equations. If the reaction doesn’t take place, indicate the reason why, Write the States of matter for each reactant and product. I. MgSO, + Ca(C3H;0:). > Cx $08) + Ms (4a 2 2, Cs00; + ZnB > Zp CHES + ros Or 3. Pb(NO)2 + NaCO, > PLCO, fea] + LANA 4, Na;SO, + Hgcl; > : ROLIRPINED NR, 5. NHC + Ba(OH), = NR. 6.2NaBr + Pb(NO;) > PERE OHAN ND, 7. CaCO)» +KNO; = AQ 8, Ba(OH). + NHCG:Hj0, = NR, PENHOH * AMO = ALO, 643 NH, NG 10. MgCl; + Hg:SQ, => AAs Cl, (he Msg $0y 11, NHBr + Ag(C2H;0;) = AgBeQe Ny 4a 12, H80, + KCl = AV p. 13. CaS + CuSO, > Cus u CcSH,8) 14.)HCL + BaCO; = Hcg ts Be ch 15. AgNO, + HNO; = yp 16. SrCO; + H,SO, > Sr$O4 H# aa 17. Ba(OH}: + NaSO,; => B, $0, (3 LING OH 18. AKOH), + FeSO); > Fe Gu), Al 60.) 19. PHECSHaOs}2 + K801 => PLEAS K G8, ° 20. FeSO; + HPO: > Fe 2 a, i}, 6 4 WS 21. NaCl + StS => Al, a, Xf Po(ClO), + KHSO, = POLO, (4 23. AIPO, +3CaCO; = An(ayy Gh Ly , fa), 24.9HT + Hg(NOs): = Hs I, wrung 25, FeCl; + AgOQ => £0, 2As CIO + Feo Chemical Equations page 5  Worksheet #5 MIXED CHEMICAL REACTIONS Complete and balance the following reactions. Indicate the type of reaction in the blank using C=composition; D=decomposition, SR=single replacement, DR=double replacement. For the given word problems, write the entire equalion in the space provide and balance like the rest. Include states of matter on all equations, For ions with multiple oxidation numbers, use the most common one indicated in bold on the periodic chart. §RA.2Fe +3Cu80, = Fe, bo,\, eg cy D2 umsco, = 2My o2Ce3 DR3QKCI + He:S0, sate Cf + Ke Oy Jf 448 +10 = 15D SRS. WSO, +d = CdS, + a SA6. Zinc+ Silver sulfate = Zoi, £2 Ae Zak Ag, £0, AAT. Sulfur dioxide + Later >_Ala Spud (3) + HO SO + HO Dk 8. Aluminum sulfite + Sodium hydroxide. 2 Alf Hs $3 Ne £G, Al, €), + ON OH 9. Iron + Chlorine gas >_2 Fg Cis Weed. B10. Decompaxition of Potassium chlorate SHE Oh no AKC 1a, DR. He + Cacos >_H, Cae Ce Cl, ———a QR12. AgNO; + HCI = Aylin + HALO, -§ 13.22n + O »>22Znd D4, H3s0, = Hy + S#lo, SRAS. FeO; + H: >_ WR DAR16. Sodium sulfate + Barium bromide =>__B gy £¢, Cb Wikre Na hoy & Bs By SR Nitrogen a No + 6 18. Heating and decomposition of mnagnestim 3 ye heptahydrate=> eso, Gi 0 z dy SRA. Water + sodium=>_Ag O14 _¢ Alot Me DR20. Mem (DD ane + ae sulfate => NR a £0, _£ 21. Ny yn > ‘ey 7 DR 22.2AwNO, + NaCO, = Ag, COM Na Ng Saye + Os = 2Hy2 DR24. Noon + BaBr, > NR, DR25. KNO; + KCyH)O, = AVR Chemical Equations page 6 _§_36. Combining of iron and water=> $27. £. DR 29. S530. ARs Silicon + Sulfur =. $35. a ys ((0) sulfide + Iron => +, S Puss motonle-A + ‘ee chtoride> _//. R c a mid Copper and oxygen=>_2. wcyv e . CuO + nts HO df . CaS + HC > __ Haye fs Cl _} 34. So 35. SR36. _b37. DR38. SR39. _§ 40. . Hydrosulfuric acid and Iron (I) chloride =>_ Fe (yeh A DHCP ba, 4 baa. DRaa. £245. Yauch > Udy #7 Ch Sb +S > Sion fy. Tron ([11) oxide and Atuminum=- Al. 2, Pa 2 FE 2 4,0, era) Heating and decomposition oe Tl) oxide=> “2 Hg + a [ron (10) bromide + Barium hydroxide=> Fe {OH\» & pd 3 g 4 R 4 UFeBy +3 8e0H), Magnesium “Ati A sulfate => Ag 5dr, a Pb Ms a Anau and PEs Oy 4) Al & Pech, areskdor ot Niben poet (ammonia) > Ay ob 3 fz] Qi Sodium ee and ai siums sulfate=> ¢ 3 2 Nay yx Ebay ————— sell Fae, (cj 4 Hy oO SO, & HO Sodium bromide and chlorine => 2 Me C) ‘, Nebr 4 aN Chemical Equations page 7