cho 20,4g hỗn hợp x ( fe,zn,al ) tác dụng với dung dịch hcl dư thu được 10,08l h2 (đktc) mặt khác 0,2 mol x tác dụng vừa đủ 6,16 lít cl2 (đktc) . xác định khối lượng mỗi kim loại trong 20,4g x giải hẳn ra nhé

Choose the best answer.

I think you should buy _____  pack of mineral water instead. And you can also buy _____  snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______  cookies and soft candies.

Choose the best answer.

We should decorate our living room with _____ orange banner. We also need ________  ribbons, balloons, party hats and costume.

Choose the best answer.

I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.