5 Cân bằng phương trình phản ứng 1) MgCl2 + 2KOH → Mg(OH)2 + 2KCl 2) Cu(OH)2 + 2HCl → CuCl2 + 2H2O 3) Cu(OH)2 + H2SO4 → CuSO4 + 2H2O 4) FeO + 2HCl → FeCl2 + H2O 5) Fe2O3 + 3H2SO4 → Fe2 (SO4)3 + 3H2O 6) Cu(NO3)2 + 2NaOH → Cu(OH)2 + 2NaNO3 7) 4P + 5O2 → 2P2O5 8) N2 + O2 → 2NO 9) 2NO + O2 → 2NO2 10) 4NO2 + O2 + 2H2O → 4HNO3 11) 2SO2 + O2 → 2SO3 12) N2O5 + H2O → 2HNO3 13) Al2(SO4)3 + 6AgNO3 → 2Al(NO3)3 + 3Ag2SO4 14) Al2 (SO4)3 + 6NaOH → 2Al(OH)3 + 3Na2SO4 15) CaO + CO2 → CaCO3 16) CaO + H2O → Ca(OH)2 17) CaCO3 + H2O + CO2 → Ca(HCO3)2 18) 2Na + H3PO4 → Na2HPO4 + H2 19) 6Na + 2H3PO4 → 2Na3PO4 + 3H2 20) 2Na + 2H3PO4 → 2NaH2PO4 + H2 21) 2C2H2 + 5O2 → 4CO2 + 2H2O 22) 2C4H10 + 13O2 → 8CO2 + 10H2O 23) C2H2 + 2Br2 → C2H2Br4 24) 2 C6H5OH + 2Na → 2C6H5ONa + H2 25) CH3COOH+ Na2CO3 → CH3COONa + H2O + CO2 26) CH3COOH + NaOH → CH3COONa + H2O 27) Ca(OH)2 + 2HBr → CaBr2 + 2H2O 28) Ca(OH)2 + 2HCl → CaCl2 + 2H2O 29) Ca(OH)2 + H2SO4 → CaSO4 + 2 H2O 30) Ca(OH)2 + Na2CO3 → CaCO3 + 2NaOH 31) Na2S + H2SO4 → Na2SO4 + H2S 32) Na2S + 2HCl → 2NaCl + H2S

Các câu hỏi liên quan

I.Complete the sentences with the correct form of the words in brackets : 1. I didn't go into business with Sam . If I .................(go) into business with him , I ...........(become) a success. 2. We got to the station in time to catch the train . If we ..............(miss) it , we..................(be) late for the meeting . 3. Mary and I weren't able to go on a honeymoon . We ............(can/go) away if may father .............(not/get) sick. 4. I took a taxi to the hotel but the traffic was very bad . It ....................(be) quicker if I ...........(walk) 5. It's good that you reminded me about Ann's birthday . I ..................(forget) if you ...................(not/remind) me . 6. The view was wonderful . If I ................... (have) a camera , I .............. (take) some photographs. 7. Unfortunately , I didn't have my address book with me when I was in New York . If I ................ (have) your address , I ...................(send) you a postcard. 8. We ................(may/be) at the airport for hours if we ....................(not/know) that the flight was delayed . 9. The accident was your fault . If you ..................(drive) morecarefully ,it ...........(not/happen). 10. If you ...............(tell) me you needed money , I ..............(can/lend) you some . II.Complete the sentences with the correct tense of the verbs in brackets. 1. If solar energy were cheaper , it ..................(be) very popular now. 2. If we had stopped the construction of the factory , the water ............(not/be) so polluted. 3. The number of tigers ................(not/decrease) that muchif we fought against poaching more positively. 4. If we .............(treat) our Mother Earth better , those disasters would not have happened . 5. We .............(help) prevent global warming if all of us travelled by bike now. 6. If we ...................(bring) the monkey to the hospital sooner , it wouldn't have died . 7. The beach wouldn't have been exploited so terribly if they ..................(not/build) the resorts there . 8. If animals could talk , what .............(they/say) ? 9. If I ................(be) the authority , I ................. (punish) that factory justly. 10. Dinosaurs ......................(not/be) extinct if the weather ...............(not/change).