A、H B、CO C、CO<sub>2sub> D、H<sub>2sub>O
A、C<sub>nsub>H<sub>2n+2sub>O<sub>2sub> B、C<sub>nsub>H<sub>2nsub>O<sub>2sub> C、C<sub>nsub>H<sub>n+2sub>O<sub>2sub> D、C<sub>nsub>H<sub>2n+1sub>O<sub>2sub>
A、C<sub>8sub>H<sub>5sub>O<sub>2sub> B、C<sub>8sub>H<sub>4sub>O<sub>3sub> C、C<sub>8sub>H<sub>4sub>O<sub>2sub> D、C<sub>8sub>H<sub>6sub>O<sub>3sub>
A、在水的凝固点时,冰的饱和蒸汽压等于水的饱和蒸汽压,等于外界大气压 B、水在100℃时(标准状态下)由液态变成气态,Δ<sub>rsub>Gθ<sub>msub>= 0 C、在水的正常沸点时,水的饱和蒸汽压等于外界大气压 D、由于H<sub>2sub>O分子之间存在氢键,故水的凝固点、沸点、比热都很高
A、C<sub>5sub>H<sub>10sub>O<sub>2sub> B、C<sub>5sub>H<sub>12sub>NO C、C<sub>6sub>H<sub>14sub>O D、C<sub>5sub>H<sub>14sub>N<sub>2sub>
A、CaSO<sub>4sub>·H<sub>2sub>O B、CaSO<sub>4sub>·2H<sub>2sub>O C、CaSO<sub>4sub>·3H<sub>2sub>O D、CaSO<sub>4sub>·4H<sub>2sub>O
A、C<sub>6sub>H<sub>6sub>N<sub>4sub> B、C<sub>6sub>H<sub>5sub>NO<sub>2sub> C、C<sub>9sub>H<sub>10sub>O<sub>2sub> D、C<sub>8sub>H<sub>15sub>O<sub>2sub>
A、NH<sub>3sub>.H<sub>2sub>O B、NH<sub>4sub>.H<sub>2sub>O C、NH<sub>3sub>OH D、NH<sub>4sub>OH