7 – 8 – 9 – sinflardagi barcha reaksiyalar
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kelajakda kim bo’lishing faqatgina o’zinga bog’liq 7 – 8 – 9 – sinflardagi barcha reaksiyalar bu reaksiyalarni yodlashga urinmang baribir esningizdan chiqadi. xotiradan chiqmasin desangiz darslikdan o’qing va shu reaksiyalar asosida ko’proq masalalar ishlang.behruz.h 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 = …
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