Hoàn thành các phương trình hóa học theo các sơ đồ sau, chỉ rõ các chất từ X1 đến X5 : a) AlCl3 + X1 X2 + CO2 + NaCl b) X2 + X3 Al2(SO4)3 + Na2SO4 + H2O c) X1 + X3 CO2 + ... d) X2 + Ba(OH)2 X4 + H2O e) X1 + NaOH X5 + H2O Giúp mình vs ạ

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.