Câu 2: Có 4 lị đựng hoá chất bị mất nhãn, mỗi lọ đựng một dung dịch sau: Na2SO4, NaNaCl, MgCl2, Fe(SO4)3. Bằng Phương Pháp hoá học, hãy nhận biết các dung dịch trong mỗi lọ trên. Viết các PTHH xảy ra.

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.