Cho các chất sau: Mg(OH)2, CaCO3, K2SO4, HNO3, CuO, NaOH, P2O5. Chất nào tác dụng với: 1) Dung dịchHCL 2) Dung dịch Ba(OH)2 3) Dung dịch BaCl3 Viết các phương trình hóa học 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.