A solution with a pH value which is less than 7 is acidic. The acids which react with metals usually have quite a low pH, of either 3 or less. Some metals react with acids and when they do the ...

PROF. LUNGE'S monumental work on the manufacture of sulphuric acid is one of the acknowledged classics of chemical technology, and the soundest proof of its continued merit and widespread appreciation ...

Explain to pupils that our stomachs contain hydrochloric acid. The following reaction could be demonstrated by the teacher or carried out by pupils in small groups. (Eye protection and caution needed ...

THE veteran professor emeritus of the Federal Technical University of Zurich would seem to be devoting his well-earned leisure almost exclusively to the emendtion of those monumental treatises on ...