Cho 5,4 gam nhôm tan hết vào dung dịch axit sunfuric loãng . Sau phản ứng thu được 34,2 gam nhôm sunfua Al2(SO4)3 và 0,6 gam hidro Al + H2SO4 ----> Al2(SO4)3 + H2 a, Hoàn thành phương trình hóa học và cho biết tỉ lệ số nguyên tử ,số phân tử của 2 cặp chất tùy chọn b, Tính số gam axit sunfua hidric H2SO4 đã phản ứng

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CÁC BẠN DỊCH RA TIẾNG VIỆT HẾT TẤT CẢ GIÙM MÌNH NHÉ. CẢM ƠN cabinet (n) cafe/café (n) cafeteria (n) cake (n) calendar (n) call (n & v)  I’ll call (phone) again later this afternoon.  He’s called John.  I’m waiting for a call from Anna. camel (n) camera (n) camp (v) camping (n) campsite (n) cap (n) capital (n) can (n & mv)  I can ride a bike. (ability)  Can I have one? (request)  Can I help you? (offer)  It can be cold here in winter. (possibility)  You can watch TV now. (permission) candy (n) cannot (mv) car (n) card (n)  birthday card  credit card  card game (e.g. We played a card game in class.) career (n) careful (adj)  Be careful! carefully (adv) car park (n) (Br Eng) (Am Eng: parking lot) carpet (n) carrot (n) carry (v) cartoon (n) case (n) cash (n & v) castle (n) cat (n) catch (v) CD (n) CD player (n) ceiling (n) cell phone (n) cent (n) centre/center (n) centimetre/centimeter (cm) (n) century (n) cereal (n) certainly (adv) chain (n)  She wore a gold chain.  I need a new bicycle chain. chair (n) change (v & n)  There is a change of room for this course. channel (n) chat (n) chatroom (n) cheap (adj) check (v) cheese (n) chef (n) chemist (n) (Br Eng) (Am Eng: drugstore) chemistry (n) cheque (n) chess (n) chicken (n) child (n) chilli (n) chips (n pl)  egg and chips chocolate (n) choose (v) cinema (n) circle (n) circus (n) city (n) class (n)  a language class  a first-class ticket classical (adj) classmate (n) classroom (n) clean (adj & v) cleaner (n) clear (adj)  It’s not clear to me. clearly (adv) clever (adj) click (n & v)  Click here to go to our website. climb (v) climbing (n) clock (n) close (adj & v) close to (prep phr) closed (adj) closet (n) clothes (n pl) cloud (n) cloudy (adj) clown (n) club (n)  to join a club coach (n)  a coach trip  a tennis coach coat (n) coffee (n) cola (n) cold (adj & n) colleague (n) collect (v) college (n) colour (n & v) comb (n) come (v) come back (v)  We came back from our holiday yesterday. comedy (n) comfortable (adj) comic (n) company (n)  What’s the name of your company? competition (n) complete (v) computer (n) concert (n) congratulations! (exclam) contact (n & v) continue (v) conversation (n) cook (n & v) cooker (n) cookie (n) (Am Eng) (Br Eng: biscuit) cooking (n) cool (adj & exclam)  That’s a cool bike! (adj) copy (v) corner (n)  the corner of the street correct (adj) cost (n & v) costume (n)  I forgot my swimming costume. could (mv)  I couldn’t find the information.  Could you lend me some money?  We could go to the cinema tonight. country (n) countryside (n) course (n)  a university course  a main course  of course (not) cousin (n) cover (v &n)  I had to cover my eyes.  There was a flower on the book’s cover. cow (n) crazy (adj) cream (adj & n)  I like strawberries and cream.  Mum’s cream T-shirt got dirty. credit card (n) cricket (n) cross (n & v)  Don’t cross the road here! (v) crossing (n)  Use the crossing to cross the street. crowd (n) crowded (adj) cry (v)  The baby’s crying. cup (n) cupboard (n) curry (n) curtain (n) customer (n) cut (v) cycle (v) cycling (n)