A、液态溴蒸发成气态溴 B、SnO<sub>2sub>(s) + 2H<sub>2sub>(g) = Sn(s) + 2H<sub>2sub>O(l) C、电解水生成H<sub>2sub>和O<sub>2sub> D、公路上撤盐使冰融化
A、液态溴蒸发成气态溴 B、SnO<sub>2sub>(s) + 2H<sub>2sub>(g) = Sn(s) + 2H<sub>2sub>O(l) C、电解水生成H<sub>2sub>和O<sub>2sub> D、公路上撤盐使冰融化
A、F<sub>2sub>>Cl<sub>2sub>>Br<sub>2sub>>I<sub>2sub> B、Br<sub>2sub>>I<sub>2sub>>F<sub>2sub>>Cl<sub>2sub> C、Cl<sub>2sub>>F<sub>2sub>>I<sub>2sub>>Br<sub>2sub> D、I<sub>2sub>>Br<sub>2sub>>Cl<sub>2sub>>F<sub>2sub>
A、Cl<sub>2sub>〉F<sub>2sub>〉Br<sub>2sub>〉I<sub>2sub> B、F<sub>2sub>〉Cl<sub>2sub>〉Br<sub>2sub>〉I<sub>2sub> C、I<sub>2sub>〉Br<sub>2sub>〉Cl<sub>2sub>〉F<sub>2sub> D、Br<sub>2sub>〉I<sub>2sub>〉F<sub>2sub>〉Cl<sub>2sub>
A、CH<sub>4sub>、CO、C<sub>2sub>H<sub>4sub>、C<sub>2sub>H<sub>6sub> B、CH<sub>4sub>、CO、C<sub>2sub>H<sub>4sub>、C<sub>2sub>H<sub>6sub>、C<sub>2sub>H<sub>2sub> C、CH<sub>4sub>、C<sub>2sub>H<sub>2sub>、C<sub>2sub>H<sub>4sub>、C<sub>2sub>H<sub>6sub> D、CO、CO<sub>2sub>、H<sub>2sub>、CH<sub>4sub>、C<sub>2sub>H<sub>4sub>、C<sub>2sub>H<sub>6sub>
A、(CH<sub>3sub>)<sub>3sub>CCO<sub>2sub>C<sub>2sub>H<sub>5sub> B、(CH<sub>3sub>)<sub>2sub>CHCO<sub>2sub>C<sub>2sub>H<sub>5sub> C、CH<sub>3sub>CH<sub>2sub>CH<sub>2sub>CO<sub>2sub>C<sub>2sub>H<sub>5sub> D、CH<sub>3sub>CO<sub>2sub>C<sub>2sub>H<sub>5sub>