Trung hòa 1 lít dung dịch H2 SO4 0,75 M bằng dung dịch KOH 25% a, Tính khối lượng dung dịch KOH đã dùng ? b, Nếu trung hòa lượng dung dịch H2 SO4 trên bằng dung dịch NaOH 15% có khối lượng riêng là 1,16 gam /ml tính thể tích dung dịch NaOH cần dùng.

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.