Trợ giúp bài tập về nhà môn Hóa học

Kỹ thuật điều chế viên nén bằng phương pháp xát cốm ướt gồm mấy công đoan a. 8 công đoạn b.7 công đoan C. 4 công đoan d. 5 công đoạn Natri benzoat cho vào sản phẩm thuốc tiêm với dước chất cafein nhằm mục đích a.Ôn đinh dước chất b.. Giảm tính kích ứng C.Chất làm tǎng đô tan d.Tǎng sinh khả dung

Nước cất là nước tinh khiết về mặt: a. Chất hữu cơ b. Hóa học, vô khuẩn không có chí nhiệt tố c. Hóa học d. Visinh

Quy trình điều chế viên tròn bằng phương pháp bao bồi chon câu ĐÚNG: a.Bao bồi thành viên:gây nhân:bao áo viên; sây viên đóng gói b. Gây nhân;bao bồi thành viên:bao áo viên; bấy viên.đóng gói C.Bao áo viên gây nhân;bao bồi thà nh viên; sấy viên,đóng gói d.Gây nhân;bao áo viên;bao bồi thành viên; sấy viên,đóng gói Công thức:Mentol 0,5g;Long não 0,5g,Bột talc vđ 10g . Công thức trên xảy ra a.Tướng ky tạo hỗn hợp eutecti b.. Tướng ky do dước chất : kết tinh ngậm nhiều phân tử nước C.Tướng ky. do dước chất keo bi ngưng kết đông vón d.. Tướng ky do dước chất có tính háo ẩm manh

Câu 26: Để giải độc thuốc ngủ barbiturat,, kiềm hóa nước tiểu bằng ? ) Natri clorid Natri sulfat Natri hydrocacbonat Natri gluconat

UNICEF also provides a relief nerwork for children and their parents or other caregivers in the aftermath of disasters, such as floods, earthquakes, and droughts it has worked extensively with children from war-forn countries to help allevate their suffering. The organization works to prevent child ahuse, child sexual exploitation of children, and the use of children as soldiers. in the United Sinter, UNICEF has focused its work on innercity children nclumized by random violence and gang warfare. has provided immunizations to millions of children against polentially fanai discuses, much as diphthena, tetanis, whooping cough measles, polio, and rubercules:promotion of basic care delivery systems and treatment such as rehydration thering for children suffering from diarmea, has also contributed to dramatic reductions in child monality in response io the global epidemic of acquired immune Jeficiency nndrome (AIDS), UNICE works to prevent the transmission of AIDS and human immunodeficiency virus (HIV) in young people and co obtain medicine for infected individuais. It also helps communities, especially those in sub-Saharan Ainca, care for the millions of children orphaned oy the death of their parents from AIDS UNICEF receives financial support from more than 150 national governments Like many international and organizations, however, UNICEF faces shrinking government subsidies for the work it performs UNICEP's challenge in the years ahead is to attract a greater percentage of its funding from foundations. corporations, and individuals to ensure its programs can continue. A. True or Faise? 1. UNICEF is an intemational organization that only provides a relief nerwork for children after disasters. such as floods, earthquake s,and droughts 2. UNICEF offers help in both developed and developing countries, including the United States 3. UNICEF has a more active role in war-lemcountries to relieve children s suffering. 4. Many governments are willing to supply more fund for its programmes 5. UNICEF receives its funds from many governments.organizations and individuals. B. Comprehension questions. 1. What problems for children does UNICEF work to prevent? 2. What are the programmes of UNICEF in the United Staies? 3. What does UNICEF do to prevent fatal diseases in children? 4. What does it help communities in sub-Saharan Africa suffering from AIDS? 5. What is UNICEF's challenge in the near future? olan thien enthalpy cus ph in vd u kien chulin f didn't ent US. It tao thann Delta _(1)H_(2) Delta _(1)H_(2)(SO_(3)(I))-1Delta H -441,0-(-296,8+0