Đáp án:
Ba(OH)2 và NH4Cl.
Giải thích các bước giải:
Ba(OH)2 + 2NH4Cl → BaCl2 + 2NH3 ↑ + 2H2O
Pháp luật quy định ntn về quyền tự do kinh doanh và nghĩa vụ đóng thuế
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.