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jamshid karimov +99 897 203 77 57 7-sinf 1. mg + o₂ = mgo 2. hgo = hg + o₂ 3. fe + cl₂ = fecl₃ 4. na + cl₂ = nacl 5. 2h₂ + o₂ = 2h₂o; 6. cao + co₂ = caco₃; 7. 2h₂o = 2h₂ + o₂; 8. caco₃ = cao + co₂ 9. zn + 2hcl = zncl₂ + h₂; 10. fe + cuso₄ = feso₄ + cu 11. naoh + hcl = nacl + h₂o; 12. bacl₂ + na₂so₄ = baso₄ + 2nacl. 13. fe + s = fes + 96 kj; 14. s + o₂ = so₂ + 297 kj. 15. h₂ + 1/2 o₂ = h₂o + 285,83 kj 16. c + o₂ …
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