Cho 5,6 lít khí CO2 (đktc) tác dụng vừa đủ với 100ml dd Ca(OH)2 a) Cm :Ca(OH)2=? b) m CaCO3=? c) Để trung hòa Ca(OH)2 cần dùng bao nhiêu gam dd HCl nồng độ 20%

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.