高中化学鲁科版第四章元素与材料世界 2023版第4章章末知识网络构建

章末知识网络构建(1)有关转化的化学方程式(属于离子反应的书写离子方程式)：硅及其化合物间的转化：①____________________________________________________________②_____________________________________________________________③_____________________________________________________________④_____________________________________________________________⑤_____________________________________________________________⑥____________________________________________________________⑦_____________________________________________________________⑧____________________________________________________________⑨__________________________________________________________⑩___________________________________________________________【答案】①Si＋2OH－＋H2O=SiOeq\o\al(2－,3)＋2H2↑②Si＋O2eq\o(=,\s\up14(△))SiO2③H2SiO3eq\o(=,\s\up14(△))SiO2＋H2O④H2SiO3＋2OH－=SiOeq\o\al(2－,3)＋2H2O⑤SiOeq\o\al(2－,3)＋CO2＋H2O=COeq\o\al(2－,3)＋H2SiO3↓⑥2C＋SiO2eq\o(=,\s\up14(高温))Si＋2CO↑⑦Si＋4HF=SiF4↑＋2H2↑⑧SiO2＋4HF=SiF4↑＋2H2O⑨SiO2＋CaCO3eq\o(=,\s\up14(高温))CaSiO3＋CO2↑⑩SiO2＋2OH－=SiOeq\o\al(2－,3)＋H2O(2)铝及其化合物间的转化：①__________________________________________________________②__________________________________________________________③__________________________________________________________④___________________________________________________________⑤___________________________________________________________⑥___________________________________________________________⑦___________________________________________________________⑧___________________________________________________________⑨___________________________________________________________⑩___________________________________________________________【答案】①2Al＋Fe2O3eq\o(=,\s\up14(高温))2Fe＋Al2O3②4Al＋3O2eq\o(=,\s\up14(点燃))2Al2O3③2Al(OH)3eq\o(=,\s\up14(△))Al2O3＋3H2O④Al3＋＋3OH－=Al(OH)3↓⑤Al2O3＋2OH－＋3H2O=2[Al(OH)4]－⑥2Al＋6H＋=2Al3＋＋3H2↑⑦A