2011年高考化学二轮复习课件：专题二十 化学与技术(选考)

2021/6/3012021/6/3022021/6/3032021/6/3042021/6/3052021/6/3062021/6/3072021/6/3082021/6/3092021/6/30102021/6/3011（3 3）煤煤的综合的综合利用利用2021/6/30122021/6/30132021/6/3014答案答案 （1）甲烷）甲烷(或或CH4) 高温发酵后分解高温发酵后分解（2）CH4 C+2H2；2CH4 C2H2+3H2（3）天然气所需的氧气多）天然气所需的氧气多2021/6/30152021/6/30162021/6/30172021/6/30182021/6/30192021/6/30202021/6/30212021/6/30222021/6/30232021/6/30242021/6/30252021/6/30262021/6/30272021/6/30282021/6/30292021/6/30302021/6/30312021/6/30322021/6/30332021/6/30342021/6/30352021/6/30362021/6/30372021/6/3038答案答案(1)(1)降低降低AlAl2 2O O3 3的熔化温度的熔化温度(2)(2)下层下层 (3)(3)碳棒碳棒( (或石墨或石墨) )阳极阳极(4)c(4)c 2021/6/3039B2021/6/3040解析解析光导纤维是新型无机非金属材料。光导纤维是新型无机非金属材料。 B 2021/6/30412021/6/30422021/6/3043答案答案(1)(1)A A(2)(2)物理变化物理变化(3)NaCl(3)NaCl585585(4)NaOH(4)NaOHSOSO2 2 NaHSONaHSO3 3，NaHSONaHSO3 3+HCl +HCl NaCl+HNaCl+H2 2O+SOO+SO2 22021/6/30442021/6/30452021/6/30462021/6/30472021/6/3048 若有不当之处，请指正，谢谢！若有不当之处，请指正，谢谢！