Cho m gam hỗn hợp X gồm Fe, FeO, Fe2O3, Fe3O4. Để khử hoàn toàn m gam hỗn hợp X cần dùng 3,36 lít H2 (đktc). Nếu cho m gam hỗn hợp X hòa tan hoàn toàn trong H2SO4 đặc, nóng, dư thì thu được 6,72 lít SO2 ( sản phẩm khử duy nhất ở đktc). Tính m. Giúp e vs ạ. tks mn nhìu lắm á

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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.

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We should decorate our living room with _____ orange banner. We also need ________  ribbons, balloons, party hats and costume.

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I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.