Viết phương trình phản ứng thực hiện dãy chuyển hóa sau: a.KMnO4 O2 CuO Cu (4) P2O5 b. KClO3 O2 ZnO Zn 🡪ZnCl2 (4) CO2 c.Al H2 H2O O2CuO d.Fe Fe3O4 Fe FeCl2.

V. Supply the correct form of the words in brackets. A natural disaster can cause_________ of life or property damage. (lose) Human greenhouse gas emissions are causing_________ warming. (globe) Kangaroos and koalas are only_________ to Australia. (nation) Hurricane Katrina was one of the_________ hurricanes ever to hit the United States. (dead) Filters do not remove all_________ from water. (contaminate) Freak tornado leaves trail of in its wake. (destroy) _________ appeal to the government to enact laws to stop factories from discharging toxic Chemicals into the sea. (environment) Toxic pollution is contaminated water, soil, and air that is_________. (poison) Pollution kills more people than both war and_________. (violent) English is the most widely_________ language worldwide, with 1.5 billion speakers. (speak)