Đáp án: $7,4125g$
Giải thích các bước giải:
$n_{KCl}=0,25.0,1=0,025(mol)$
$n_{Ca(OH)_2}=0,25.0,3=0,075(mol)$
$\to m=m_{KCl}+m_{Ca(OH)_2}=0,025.74,5+0,075.74=7,4125g$
Tính √ (4 - 2√ 3) giải giúp mình đi mà
all than that into because causes either combing also due Paper can be recycled by reducing it to pulp and (1)……………….it with pulp from newly harvested wood. As the recycling process (2)……………….. the paper fibers to breakdown, each time paper is recycled its quality decreases. This means that (3)…………………a higher percentage of new fibers must be added, or the paper down cycled (4)…………………..lower quality products. Any writing or coloration of the paper must first be removed by deinking, which (5)…….removes fillers, clays, and fiber fragments. Almost (6) ……………….…….paper can be recycled today, but some types are harder to recycle …… …… (7) …… others. Papers coated with plastic or alumium foil, and papers (8)…………………..are waxed, pasted, or gummed are usually not recycled (9)………………….the process is too expensive. Gift wrap paper also cannot be recycled (10)…………………to its low quality.
Giúp mình với mình cần gấp .ảnh hơi mờ mong mọi ng thông cảm.
mọi người giúp em bài này với ạ
Cho a,b,c là các số tự nhiên khác 0 . Biết 28/29 < 1/a + 1/b + 1/c <1 . Tìm giá trị nhỏ nhất của tổng S= a+b+c
Làm giúp mình 2 câu này với ạ do mình còn 20₫ nên ko thể cho điểm cao hơn :<
Vẽ đậu mầm NL: Ns đúng sự thật nghe chx tui lm r đấy bn ns đúng sự thật đuy
1. She just had time to put up her umbrella before the rain came down in torrents. No sooner_______________________________________________________________ 2. “Why didn’t you report the incident to the police last week?” the officer asked the frightened witness. The officer wanted to know_________________________________________________ 3. The Presidential visit attracted such an enormous crowd that all traffic came to a standstill. So many_________________________________________________________________ 4. A fire destroyed most of the old city of London in the 1600s. The destruction___________________________________________________________ 5. He hasn’t been back to his home town for over 20 years now. It is_____________________________________________________________________ 6. Travelling by plane is much more expensive than traveling by train. Travelling by train_________________________________________________________ 7. I would love to be rich and famous. If only___________________________________________________________________ 8. It took a long time for them to decide to get married. They____________________________________________________________________ 9. “Is it, or is it not true that you have been misappropriating company funds?” the managing director asked the accountant. The managing director wanted_______________________________________________ 10. If you want to save your eyesight, we must operate immediately. Only by_________________________________________________________________
giải giúp em từ câu 5-20 ạ em cảm ơn nhiều lắmmm
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