... làm chất dẻo: A Poli(metylmetacrylat) B Poli(acrilonitrin) C Poli(vinylclorua) D Poli(phenolfomandehit) Câu 33:Muốn tổng hợp 120 kg poli(metylmetacrylat) khối lượng axit rượu tương ứng cần dùng ... dụng với nước Brom A B C D Câu 38: Chất sau không tráng gương A Axetilen B Fructozơ C Glucozơ D fomandehit Câu 39: Chất không tham gia phản ứng thủy phân A Tinh bột B Xenlulozơ C Saccarozơ D glucozơ ... làSaccarozơ Các nhận định A 2, 4,6 B 1, 2, C 3, 4, D 1, 2, 4, 5,6 Câu 2: Khối lượng Ag sinh cho gam andehit fomic tác dụng với lượng dư AgNO3/NH3 A 21,6 gam B 16,2 gam C 43,2 gam D 10,8 gam Câu 3:...
... are full of B a reuse and recycle thing b we will pollute the environment c by using bike instead of motorbike d since its water is polluted e I will take them for recycling and burn it trash ? ... you bad mark a) get b) got c) will get d) have gotten John speaks English All of us understand what he said a) good b) well c) bad d) badly Hurry up, Ba You are always a) slow b) slowly...
... paragraph describing the animal and suggest possible solutions to protect it from extinction (100 words) - Habitat: Grasslands, tropical and subtropical forest in Africa and Southern Asia - Population: ... gymnasium at the school, and using a soccer ball and nine players on each side, organized the first basketball game The early rules allowed three points for each basket and made running with the ... stroke used is also a lot shorter and quicker and is used to protect the ball at all times Backstroke is used by defending field players to track advancing attackers and by the goalie to track the...