Cho các chất : dung dịch HCL , dung dịch K2SO4,dung dịch NACL,dung dịch ZNCL2,CU,CO2,FE3O4.Chất nào tác dụng được với dung dịch BA(OH)2 ? Viết phương trình hoá học

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Đáp án:

Ba(OH)2+ 2 HCl -> BaCl2 +H2O

Ba(OH)2 + K2SO4 -> BaSO4+ 2 KOH

Ba(OH)2 + ZnCl2 -> Zn(OH)2 +BaCl2

Ba(OH)2 + CO2 -> BaCO3 + H2O

Ba(OH)2 + 2 CO2 -> Ba(HCO3)2 

2HCl+BA(OH)2-->BACL2+2H2O

ZNCL2+BA(OH)2-->ZN(OH)2+BACL2

CO2+BA(OH)2-->BACO3+

Ba(OH)2 + K2SO4 -> BaSO4+ 2 KOH

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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. ……………………………………………………………………………………

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