![]() ![]() The symbol of oxygen is O, of hydrogen is H, of helium He, of copper Cu, of sodium Na, of plutonium Pu. Production, repelled, unpaired, solution, foodstuffs, compounds, enabled, branches, electrolysis, chain. of chemistry.ġ0) Diamagnetic substances have no. ![]() of aniline dyes.ĩ) There are more than 30 different. Ĩ) Scientists are making a major contribution to. the chemical industry to make great progress.ħ) Zelinsky's works formed the basis for the synthesizing of a large number of new chemical. reactions is a major discovery of our time.Ħ) The close links between the science and industry.
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