young01

cho hh gồm 13,5g Al và 56g Fe vào 200ml dung dịch chứa a mol H2SO4 và b mol HNO3. tính m dd sau phản ứng :p:p:p các bạn giúp mk với huhu khó quá đi

1,Since the time this meeting is over, the board will have made several important. 2, We are reluctant to order more equipment from that firm because the last shipment was received so lately. 3, Before about 1980, most businesses have used carbon paper to make multiple copies of typed documents...

1, which do you think is more important: - Following the dreams your parents want for you or - Following your own dreams 2, Can men wear women's clothing or can women wear men's clothing?

1.If it’s hot, we (go).................................................... for a swim 2.You’ll be really tired tomorrow if you (not go)............................................................ 3.If someone (lend)........................................................you a bike, you can come...