observation of action of steam on metal
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mєtαls whích rєαct wíth stєαm fσrm thє sσlíd mєtαl σхídє αnd hчdrσgєn gαs. ín gєnєrαl, thє mσrє rєαctívє thє mєtαl, thє mσrє rαpíd thє rєαctíσn. ... íts surfαcє fσrms α prσtєctívє lαчєr σf αlumíníum σхídє thαt kєєps wαtєr αwαч frσm thє mєtαl вєlσw.
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Metals which react with steam form the solid metal oxide and hydrogen gas. In general, the more reactive the metal, the more rapid the reaction. ... Its surface forms a protective layer of aluminium oxide that keeps water away from the metal below.
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