cho 12,27 gam Cu và Al tác dụng hoàn toàn dung dịch HNO3 đăc,nóng dư thu đc 16,8 lít khí No2 (dktc) là sản phẩm khử duy nhất a.viết phản ứng sảy ra b.xác đinh % khối lượng kim loại trong hỗn hợp

Rewrite each sentence so that it contains a passive verb, and so that the names of people are not mentioned. VD:1 The authorities have closed the casino. The casino has been closed......... 2 The clubs have postponed the match. -> 3 People all over the world speak English -> 4 The authorities have opened the new swimming pool. 5 Someone left this purse in the classroom yesterday. 6.The city council has banned traffic from the city centre. 7 .People have elected a new government 8 Someone broke into the flat last night

vẽ anime nhé tôi hôm qua ai xóa của tui rồi :<

I) Fill in each blank in the sentences with one word from the box. FROM--------------OBEY---------------ALOWED-------------FOOT-----------ILLEGAL---------------RIDE 1) I DON'T THINK THAT WE CAN ......................BICYCLES HERE BECAUSE THERE IS A ROAD SIGN OF NOT CYCLING. 2) IT IS .................................... TO DRIVE ON THE LEFT IN VN. 3) YOU ARE NOT .......................... TO RIDE MOTORBIKE WITHOUT WEARING A HELMET. 4) YOU MUST......................... THE TRAFFIC RULES FOR YOUR SAFETY AND THAT OF OTHER ROAD USERS. 5) I GO TO SCHOOL ON ..................... TO KEEP FIT AND HEALTHY THANKS

Giúp em với mng ơi, chiều nay em thi rùii ạaa

Edit gacha. Yêu cầu, đẹp, xinh,.... Lấy oc ng khác thì ghi nguồn. Kí tên nick đầy đủ.

Cho $x;y;z>0$ tm $x+y+z=2019$ $P=\dfrac{1}{x^2+y^2+z^2}+$$\dfrac{3}{4xy}+$$\dfrac{3}{4yz}+$$\dfrac{3}{4xz}$

Số nào cộng cho 16,305 rồi cộng tiếp cho 23,695 thì bằng 100 (hơi khó hiểu chút)

Mình làm đúng không đừng ghi bừa

Three things bring good luck in Viet nam. Three things bring bad luck in Viet nam GIÚP MK NHEN!