Đáp án:
Cu(OH)2 nhiệt phân tạo thành CuOCu tđộ -> CuO
Đáp án: 2Fe(OH)3 --->( nhiệt phân hủy) Fe2O3 + 3H2O
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.
We should decorate our living room with _____ orange banner. We also need ________ ribbons, balloons, party hats and costume.
I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.