A:制氯化铁:2Fe+3CuCl2═2FeCl3+3Cu
B:用稀硫酸除去炭粉中的少量氧化铜:CuO+H2SO4═CuSO4+H2O
C:用硝酸钡区别氢氧化钠和硫酸钾:K2SO4+Ba(NO3)2═BaSO4↓+2KNO3
D:用氢氧化铝治疗胃酸过多症:Al(OH)3+3HCl═AlCl3+3H2O
——This history book is of great value.——Exactly. ____________ can be enjoyed from it ____________ you have a deep understanding of it, however.
lǎo shī de zhūn zhūn jiào huì duō me lìng wǒ nán wàng a!
____