Hòa tan 7,65 gam BaO vào 500ml H20 thu đc dd X a) Viết PTHH b) Tính nồng độ của Ba(OH)2 trong X c) Cho dd X tác dụng với dd H2S04 dư tính khối lượng kết tủa tạo thành (Đ/s a.0,1M b.11,65 gam )

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.