Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Kuti afungidzire urefu hwomugwagwa weH+3 mumakore aya, Oka akashandisa muenzaniso wenguva dzose kuti aone huwandu hwehuwandu hunofungidzirwa mumakore akapararira uye akaoma. Sezvatsanangurwa pamusoro apa, makore akapararira uye akaoma ane nzira imwechete yekuumbwa kweH + 3, asi maitiro akasiyana ekuparadza. Mumakore ane mwero, kupfuudzwa kweproton neCO ndiyo nzira huru yokuparadza. Ikoku kunotsinhirana nechiverengero chakatarwa che 10−4 cm−3 mumakore akaoma.  Mubvunzo: Chishandisoi chaakashandisa pakufungidzira kwake?
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