Subtitles section Play video Print subtitles ready Producing court. Common dockside on oxygen. Mainly oxygen gas is being produced, which is why you're seeing the foot fizzing. And it's become copper oxide. Cooper s oxide, actually. So that's copper to oxide.
B2 oxide copper oxygen sulfate cooper colour Copper Sulfate Colour Change (reaction only) 5 0 林宜悉 posted on 2020/03/27 More Share Save Report Video vocabulary