Có các chất sau: Cu, CuO, Al(OH)3, CO2, SO3, Na2CO3, AgNO3, Fe2O3. Những chất nào tác dụng với a/ dd HCl b/ dd NaOH Viết các phương trình hóa học xảy ra ai cứu tui zới

2 câu trả lời

a) Những chất td với dd HCl: CuO, Al(OH)3, Na2CO3, Fe2O3

PTHH: 

CuO + 2HCl  CuCl2 + H2O

Al(OH)3 +6 HCl  2AlCl3 + 3H2O

Na2CO3 + 2HCl  2NaCl + H2O + CO2

Fe2O3 + 6HCl  2FeCl3 + 3H2O

b) Những chất td với dd NaOH: Al(OH)3, CO2, SO2, AgNO3

PTHH:

Al(OH)3 + NaOH  NaAlO2 + 2H2O

CO2 + 2NaOH  Na2CO3 + H2O

SO2 + 2NaOH  Na2SO3 + H2O

2AgNO3 + 2NaOH  2NaNO3 + Ag2O + H2O

Xin ctlhn cho nhóm ak

 

Em tham khảo nha:

\(\begin{array}{l}
a)\\
CuO + 2HCl \to CuC{l_2} + {H_2}O\\
Al{(OH)_3} + 3HCl \to AlC{l_3} + 3{H_2}O\\
N{a_2}C{O_3} + 2HCl \to 2NaCl + C{O_2} + {H_2}O\\
AgN{O_3} + HCl \to AgCl + HN{O_3}\\
F{e_2}{O_3} + 6HCl \to 2FeC{l_3} + 3{H_2}O\\
b)\\
Al{(OH)_3} + NaOH \to NaAl{O_2} + 2{H_2}O\\
C{O_2} + 2NaOH \to N{a_2}C{O_3} + {H_2}O\\
S{O_3} + 2NaOH \to N{a_2}S{O_4} + {H_2}O
\end{array}\)

 

Câu hỏi trong lớp Xem thêm

Combine the two sentences into one. Using where, when. …………………………………………………………………………………… 2. I’ll never forget the day. I met you on that day. …………………………………………………………………………………… 3. The city was beautiful. We spent our vacation in that city. …………………………………………………………………………………… 4. Monday is the day. We will come on that day. …………………………………………………………………………………… 5. That is the restaurant. I will meet you at that restaurant. …………………………………………………………………………………… 6. 7:05 is the time. My plane arrives at that time. …………………………………………………………………………………… 7. The town is small. I grew up in that town. …………………………………………………………………………………… 8. That is the drawer. I keep my jewelry in that drawer. …………………………………………………………………………………… 9. 1960 is the year. The revolution took place in that year. …………………………………………………………………………………… 10. July is the month. The weather is usually hot in that month. ……………………………………………………………………………………

5 lượt xem
1 đáp án
10 giờ trước