8-sinf kimyo reaksiyalar

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8-sinf kimyo 1. ca + 2h2o = ca(oh)2 + h2 2. cao + h2o = ca(oh)2 3. zn + 2hcl = zncl2 + h2; 4. naoh + h2so4 = nahso4 + h2o 5. zn(oh) 2 + 2hcl = zncl2 + 2h2o 6. zn(oh) 2 + 2naoh = na2zno2 + 2h2o 7. 2na + o2= na2o2 8. 2na + 2h2o = 2naoh + h2 9. 2k + o2= k2o2 10. 2k + 2h2o = 2koh + h2 11. h2 + cl2 = 2hcl 12. na + cl2 = 2nacl 13. cuo + h2so4 = cuso4 + h2o 14. mg+o2=mgo 15. s+o2=so2 16. h2s+o2=s+h2o 17. h2s+o2=so2+h2o 18. p+o2=p2o5 19. cuo+h2=cu + h2o 20. fe2o3 + h2 = fe + h2o 21. kcl + agno3 = kno3 + agcl 22. feo + co = fe + co2 23. 2li + h2 = 2lih, 24. hgo + h2 = hg + h2o 25. 2al …

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68. cao + 2hcl = cacl2 + h2o 69. ca(oh)2 + 2hcl = 2cacl2 + 2h2o 70. ca + cl2 = cacl2 71. h2+s=h2s 72. na+s=na2s 73. al+s=al2s3 74. zn+s=zns 75. fe+s=fes 76. s+cl=scl2 77. s+f=sf6 78. fes + 2hcl = fecl2 + h2s 79. h2s + 3o2 = 2so2 + 2h2o (agar kislorod yetarli bo‘lsa) 80. 2h2s + o2 = 2s + 2h2o (kislorod yetarli bo‘lmasa) 81. fecl3 + h2s = fecl2 + hcl + s 82. h2s+ cl2 =hcl +s 83. h2s + h2so3 = s + h2o 84. koh + h2s = k2s + 2h2o 85. cao + h2s = cas + h2o 86. cucl2 + h2s = cus + 2hcl 87. h2s + pb(no3)2 = pbs + 2hno3, 88. na2s + pb(no3)2 = pbs + 2nano3 89. na2so3 + h2so4 = na2so4 + h2o + so2 90. 2h2so4(kons) + cu = cuso4 + so2 + 2h2o …

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) 136. (nh4)2co3 = 2nh3 + h2o + co2 137. (nh4)2so4 + 2naoh = na2so4 + 2nh3 + 2h2o 138. 3cu + 8hno3= 3cu(no3)2 + 2no + 4h2o (suyul-n) 139. 2no + o2 = 2no2. 140. cu + 4hno3 = cu(no3)2 + 2no2 + 2h2o (konsentrlangan) 141. 2no2 + h2o = hno3 + hno2. 142. 4no2 + 2h2o + o2 = 4hno3 143. hno3 = 4no2 + o2 + 2h2o 144. cuo + 2hno3 = cu(no3)2 + h2o 145. fe(oh)3 + 3hno3 = fe(no3)3 + 3h2o, 146. na2co3 + 2hno3 = 2nano3 + h2o + co2. 147. cu + 4hno3 (kons.) = cu(no3)2 + 2no2 + 2h2o, 148. pb + 4hno3 (kons.) = pb(no3)2 + 2no2 + 2h2o, 149. 3cu + 8hno3 (suyul.) = 3cu(no3)2 + 2no + 4h2o 150. 4fe + 10hno3 (juda suyl.) = 4fe(no3)2 + nh4no3 + 3h2o. 151. au + hno3 + 3hcl = aucl3 + …

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aco3 + h3po4 = cahpo4 + h2o + co2. 190. n2 → nh3 → no → no2 → hno3 → ca(no3)2 191. n2 → nh3 → (nh4)2co3 → nh3 → (nh4)2so4 192. cuso4 → cu(oh)2 → cuo → cu; 193. fe → fecl2 → fe(no3)2 → fe(oh)2 → feo → fe 194. fe → fecl3 → fe(oh)3 → fe2o3 → fe → feso4 195. p → p2o5 → h3po4 → ca3(po4)2; 196. s → so2 → so3 → h2so4 → na2so4 197. c → co2 → caco3 → cao → ca(oh)2 → ca(hco3)2; 198. caco3 → ca(hco3)2 → caco3 → co2 → caco3; 199. na → nah → naoh → nano3 200. (cuoh)2co3 → cuo → cuso4 → cu(oh)2 → cuo → cu. 201. hcl → cl2 → cucl2 → cu(oh)2 → cuo → cu 202. kbr → br2 → hbr → agbr 203. nabr → nacl → cl2 → …

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8-sinf kimyo 1. ca + 2h2o = ca(oh)2 + h2 2. cao + h2o = ca(oh)2 3. zn + 2hcl = zncl2 + h2; 4. naoh + h2so4 = nahso4 + h2o 5. zn(oh) 2 + 2hcl = zncl2 + 2h2o 6. zn(oh) 2 + 2naoh = na2zno2 + 2h2o 7. 2na + o2= na2o2 8. 2na + 2h2o = 2naoh + h2 9. 2k + o2= k2o2 10. 2k + 2h2o = 2koh + h2 11. h2 + cl2 = 2hcl 12. na + cl2 = 2nacl 13. cuo + h2so4 = cuso4 + h2o 14. mg+o2=mgo 15. s+o2=so2 16. h2s+o2=s+h2o 17. h2s+o2=so2+h2o 18. p+o2=p2o5 19. cuo+h2=cu + h2o 20. fe2o3 + h2 = fe + h2o 21. kcl …

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