1L稀H2SO4 和稀H NO3的混合液，其物质的量浓度分别为0.4mol·L-1和0.1mol·L-1。若向该混合液中加入足量的铜粉，则最多能溶解铜粉的质量为
| A．2．4g | B．3．2g | C．6．4g | D．9．6g |
相关试题
The children loved their day trip, and they enjoyed the horse ride ______.
| A．most | B．more | C．less | D．little |
Progress______ so far very good and we are sure that the work will be finished on time.
| A．was | B．had been | C．has been | D．will be |
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| A．someone | B．anyone | C．not one | D．no one |
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| A．said | B．to say | C．saying | D．being said |
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