1. 1. TH L TR CHI Mi cu hi s c 10 giy suy ngh v tr li. Lp chia thnh 4 i u tin mi i s c ra 2thnh vin tham gia tr chi nu cc bn trn trli sai t ng bc ra v thnh vin khctrong i thay th lu lp li cho n thnh vincui cng nu nh i no ht thnh vin trcxem nh thua cuc i no c thnh vin tr lic lu nht khi cc i khc b loi ht li chin thng.
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3. 3. 000:::::0001003478901256startCu 1 : ng l nguyn t kim loi thuc nhm IIBng hay sai?P N : Sai ng thuc nhm IB WIN
4. 4. 000:::::0001003478901256startCu 2: ng ch c s oxi ha +2 ng hay sai ?P N : Sai ngoi +2 cn +1 WIN
5. 5. 000:::::0001003478901256startCu 3: ng l mt kim loi nn tc dng vi dung dchHCl , H2SO4 long ng hay sai ?P N : sai WIN
6. 6. 000:::::0001003478901256startCu 4: Cho bit h s cn bng trong phn ng gia ng vaxit nitric c sn phm kh to ra l kh NO2 ? ch vit rphng trnh trong cu tr li.P N : Cu 4 HNO Cu ( NO ) 2NO H O3 (dac) 3 2 2 2 1 4 1 22 2 WIN
7. 7. 000:::::0001003478901256startCu 5: ng kh c ion cc kim loi ng sau n trongdy in ha ng hay sai ?P N : ng WIN
8. 8. 000:::::0001003478901256startCu 6: Vit phn ng iu ch ng(II) oxit bng cch nhitphn mui ng(II) nitrat .P N :03 2 2 2 2 (NO ) 2 4 t Cu CuO NO O WIN
9. 9. 000:::::0001003478901256startCu 7: ng thau l hp kim ca ng vi kim loi no ?v t l l bao nhiu ?P N : Cu-Zn , Zn (45%). WIN
10. 10. 000:::::0001003478901256startCu 8: Vng 9 cara l hp kim ca ng v vng .Em hy cho bit t l ca cc cht trong hp kim?P N : 2/3 Cu, 1/3 Au WIN
11. 11. 000:::::0001003478901256startCu 9: ng hidroxit l cht rn c mu .in ch cn thiu vo ch trng .P N : Xanh WIN
12. 12. 000:::::0001003478901256startCu 10: ng sunfat dng khan l cht rn mu in ch cn thiu vo ch trngP N : Trng WIN
13. 13. 000:::::0001003478901256startCu 11: Ngi ta da vo nhng tnh cht vt l noca ng sn xut dy in ?P N : Tnh do, tnh dn in. WIN
14. 14. 000:::::0001003478901256startCu 12:Nguyn nhn khi eo dy chuyn bc c mu en?P N :Bc gp H2S trong khng kh hay trong ncs chuyn mu en. WIN
15. 15. 000:::::0001003478901256startCu 13: Vng tan trong nhng hp cht no ?P N :Nc cng toan, dd mui xianuaca kim loi kim, thy ngn.WIN
16. 16. 000:::::0001003478901256startCu 14: Cho bit t l hn hp nc cng toan ?P N : Hn hp 1 th tch HNO3 v 3 th tch HCl c WIN
17. 17. 000:::::0001003478901256startCu 15: Ti sao km khng b oxi ha trong khng kh?P N : Km c mng oxit hoc cacbonat baz bo v. WIN