题目

根据语境及首字母提示填空。Wang Dan: Hello, Beth. Do you know that girl?Beth: Yes. She's my f, Ann.Wang Dan: W is she from?Beth: She is from Japan.Wang Dan: You look d from her.Beth: That's right. She has black hair and black eyes, b I have blond hair and blue eyes.Wang Dan: I have black hair and black eyes, too.Beth: We d look the same, but we are good friends. 答案：【1】friend【2】Where【3】different【4】but【5】don't按要求完成下列填空（1）写出下列物质的电离方程式：Fe2（SO4）3Fe2（SO4）3═2Fe3++3SO42-Fe2（SO4）3═2Fe3++3SO42-，NaHCO3NaHCO3═Na++HCO3-NaHCO3═Na++HCO3-；（2）写出下列反应的离子方程式：稀盐酸与碳酸钙反应CaCO3+2H+═Ca2++CO2↑+H2OCaCO3+2H+═Ca2++CO2↑+H2O，氢氧化钡溶液与稀硫酸反应Ba2++2OH-+2H++SO42-═BaSO4↓+2H2OBa2++2OH-+2H++SO42-═BaSO4↓+2H2O；（3）写出与下列离子方程式相对应的化学方程式：H++OH-═H2OHCl+NaOH═NaCl+H2OHCl+NaOH═NaCl+H2O，CO32-+2H+═CO2↑+H2ONa2CO3+2HCl═2NaCl+CO2↑+H2ONa2CO3+2HCl═2NaCl+CO2↑+H2O．