1、22p27114na + o2 =2na2o 2-2na + o2 = na2o22-al2o3alalalal 12na+2h2o=2naoh+h2p2823fe+4h2o(g) = fe3o4+4h2 naoh cuso4fecl3 2na+2h2o+cuso4 =cu(oh)2+na2so4+h26na+6h2o+ 2fecl3 =2 fe (oh)3+ 6nacl+3h2p292p32-na2o2p332na2o2+2h2o=4naoh+o2na2co3nahco3na2co3nahco3na2co3nahco310mlna2co3nahco3na2co3()nahco3na2co3
2、nahco3 na2co3 nahco32nahco3 nahco3nahco3+hcl=nacl+ h2o + co2 hco3-+h+=h2o+co2na2co3+2hcl=2nacl+ h2o+co2 co32-+2h+=h2o + co2p343 2nahco3=na2co3+h2o+co2 co2+ca(oh)2=caco3+h2o na2co3nahco3p35 p40-44p40mgo fe2o3 cuo1 mgo+2hcl=mgcl2+h2o fe2o3+6hcl= fecl3+3h2ocuo+2hcl=cucl2+h2o2 al2o3al2o31fecl3+3naoh=fe(
3、oh)3+3naclfecl2+2naoh=fe(oh)2+2nacl4fe(oh)2+o2+2h2o=4fe(oh)2fe(oh)2fe(oh)2p412fe(oh)2 fe(oh)2fe(oh)3 fe(oh)23fe(oh)3fe(oh)3fe(oh)2fe(oh)2fe(oh)3+3hcl=fecl3+3h2o fe(oh)2+2hcl=fecl2+2h2o2al(oh)31 al2(so4)2+6naoh=2al(oh)3+3na2so4 al2(so4)2+6nh3h2o=2al(oh)3+3 (nh4)2so42-al(oh)3al(oh)3+naoh=naalo2+2h2oal
4、(oh)3+oh-=alo2-+2h2oal(oh)33al(oh)3+h+=al3+2h2oal(oh)3+oh-=alo2-+2h2onh3h2op42al(oh)34al(oh)3 2al(oh)3= al2o3+3h2o3al2o3al2o3+6hcl=2alcl3+3h2oal2o3 al2o3+2naoh=2naalo2+3h2oal2o3al2o31-p432-al2o3cuso432al+3cuso4=3cu+al2(so4)3al2o311na2ok2ocaoal2o32al(oh)32al(oh)3nh3h2op441 al3+3oh-=2al(oh)3 al(oh)3+oh-=alo2-+2h2o2al3+4oh-= alo2-+2h2oal3+3alo2-+6h2o= 4al(oh)3 1h2so4fe 2 3o21h2so4fe 2naoh3h24h2 p4749 fe3+fe2 +fe3 +23kscnfe3 + fe2 +fe3 +1(1)2fecl3+2ki=2fecl2+2kcl+i2(2)2fecl3+fe=3fecl2fe3 +-fe2 +fe3 +
