Đáp án+Giải thích các bước giải:
`M_2(CO_3)_n+2nHCl->2MCl_n+nCO_2+nH_2O`
Cân bằng phương trình
`M_2(CO_3)_n + 2nHCl -> 2MCl_n + nCO_2 + nH_2O`
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.