ban oi vo link nay tim hieu them nha:https://search.yahoo.com/search;_ylt=Awr9DuJtL5hfbg4A3jZXNyoA;_ylc=X1MDMjc2NjY3OQRfcgMyBGZyA21jYWZlZQRmcjIDc2EtZ3Atc2VhcmNoBGdwcmlkA0dudlVQZ25XUkFPSTJ4OF9BN1ouOUEEbl9yc2x0AzAEbl9zdWdnAzQEb3JpZ2luA3NlYXJjaC55YWhvby5jb20EcG9zAzEEcHFzdHIDdmlldCBUb3BpYyBjaHUgZGUgbG9jYWwgZW52aXJvbm1lbnQEcHFzdHJsAzM1BHFzdHJsAzM3BHF1ZXJ5A3ZpZXQlMjB0b3BpYyUyMGNodSUyMGRlJTIwbG9jYWwlMjBlbnZpcm9ubWVudGFsBHRfc3RtcAMxNjAzODA4OTc3BHVzZV9jYXNlAw--?p=viet+topic+chu+de+local+environmental&fr2=sa-gp-search&fr=mcafee

Another cause of environmental pollution is the lack of responsibility of businesses. The most profitable multi-profit, not least business scope cascade, return the environmental pollution score. In addition, policies that are not well organized in the state's management and protection environment have also been approached for the next environment. Vietnam lacks strict environmental protection policies and regulations and makes investments vulnerable to the "trap": becoming more polluting industries. For example, the steel rolling industry consumes a lot of resources, such as land, water and energy, which pose environmental hazards. Out, amount of car to be shared in a few days at least you can not less into the preset gas beats.

Tính
a/ tính khối lượng của 3 mol Fe ; 0,5 mol O2 ; 0,15 mol H2SO4
b/ tính thể tích chất khí (đktc) của 0,5 mol N2; 0,6 mol CO ;0,3 mol SO2
c/ tính khối lượng chất tan có trong 200ml dung dịch HCL 0,1 mol
d/ tính số mol chất tan có trong 100 gam dung dịch H2SO4 9,8 %
e/ tính % khối lượng mỗi nguyên tố trong hợp chất : NH4CL ; K2CO3