A、CuO+H<sub>2sub>=Cu+H<sub>2sub>O,吸热反应 B、CuO+H<sub>2sub>=Cu+H<sub>2sub>O,放热反应 C、CuO+H<sub>2sub>=Cu+H<sub>2sub>O,可逆反应 D、ABC均不对
A、CuO+H<sub>2sub>=Cu+H<sub>2sub>O,吸热反应 B、CuO+H<sub>2sub>=Cu+H<sub>2sub>O,放热反应 C、CuO+H<sub>2sub>=Cu+H<sub>2sub>O,可逆反应 D、ABC均不对
A、C+O<sub>2sub>=CO<sub>2sub> B、C+O<sub>2sub>=CO C、CO+H<sub>2sub>O=CO<sub>2sub>+H<sub>2sub> D、C+H<sub>2sub>O=CO+H<sub>2sub>
A、CO、H<sub>2sub>、CH<sub>4sub>、N<sub>2sub> B、Ar<sub>2sub>、CH<sub>4sub>、N<sub>2sub>、H<sub>2sub>、NH<sub>3sub> C、NH<sub>3sub>、CH<sub>4sub>、N<sub>2sub>、CO<sub>2sub> D、H<sub>2sub>O、N<sub>2sub>、H<sub>2sub>、CH<sub>4sub>
A、H<sub>1sub>、H<sub>2sub>A、H<sub>2sub>B、H<sub>3sub> B、H<sub>1sub>、H<sub>2sub>A、H<sub>2sub>B、H<sub>3sub>A C、H<sub>2sub>A、H<sub>2sub>B、H<sub>3sub>、H<sub>4sub> D、H<sub>2sub>A、H<sub>2sub>B、H<sub>3sub>A、H<sub>4sub>
A、O<sub>2sub>+H<sub>2sub> B、O<sub>2sub>+Cl<sub>2sub> C、CO+H<sub>2sub> D、N<sub>2sub>+O<sub>2sub>