user-avatar
phantanthinh1306
2 năm trước
Cho 25,6g hỗn hợp 2 muối Na2CO3 và CaCO3 tác dụng vừa đủ với dung dịch HCl 1M, ta thu được 5,6 (lít) khí ở đkc. a. Tính % khối lượng mỗi mỗi chất trong hỗn hợp đầu ? b. Tính thể tích dung dịch HCl 1M đã tham gia phản ứng và khối lượng muối clorua tạo thành ? c. Cho dung dịch muối clorua tạo thành sau phản ứng tác dụng với dung dịch AgNO3 dư thu được kết tủa X, lọc kết tủa nung nóng đến khối lượng không đổi thu được m(g) chất rắn Y. Tính m(g) ? Mình cần chủ yếu là câu b và c nha
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Exercise 6. Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions. 67. It is important that men should share household tasks ____ their wives. A. to B. with C. for D. against 68. Women are more hard-working than men although they are physically ____ weaker. A. more B. as C. so D. Ø 69. Women are likely to become trouble-makers ____ they are too talkative. A. in order B. so C. because D. thus 70. Some people tend to wrongly believe that men are not as good ____ children as women. A. with B. as C. at D. on 71. Not many people are aware ____ male preference in this company. A. for B. on C. about D of 72. I don't think mothers should be discouraged ____ outside the home. A. to work B. from working C. to working D. Working 73. More and more girls apply ____ males’ jobs these days. A. by B.for C. about D. to 74. Working mothers can inspire their kids ____ their hard work and devotion. A. with B. about C. at D. for 75. Now I wish I could ____ a medical career to become a doctor. A. pursuing B. be pursuing C. be pursued D. pursue 76. Educated women are becoming less dependent ____ their husbands’ decisions. A. about B.of C.on D. for 77. This policewoman is famous ____ her courage and strong will. A. with B. for C. on D. about 78. I am thinking ____ becoming a childcare worker because I love children. A. of B. with C. for D. on 79. A lot of things need to be done ____ gender equality in education, employment and healthcare. A. promoting B. in promoting C. for promoting D. to promote 80. Nowadays, a number of parents still have preference for boys ____ girls. A. rather B. than C. over D. instead 81. Women’s salaries are getting more important ____ their household income. A. at B. to C. in D. within 82. I think everybody should be provided ____ equal access to health services. A. with B. on C. for D. to 83. Gender discrimination must ____ in order to create a better society. A. eliminate B. be eliminating C. be eliminated D. eliminated 84. This company can ____ for wage discrimination among workers of different genders. A. be sued B. be suing C. sue D. sued 85. Poor women in disadvantaged areas should ____ more help by governments. A. offer B. be offered C. be offering D. offered 86. Married women should be encouraged ____ a career of their preference. A. pursued B. pursue C. to pursue D. from pursuing 87. Domestic violence ____ women and girls must be wiped out at any cost. A. on B.at C.for D. against 88. Having good education enables women ____ equality. A. to achieve B. achieve C. to achieving D. Achteved 89. We all need to cooperate to fight ____ racism and gender discrimination. A. for B. against C. in D. about 90. The women in this company have been demanding equal pay____ equal work. A. against B. on C. for D. with

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team