I know bases include all metal oxides and metal hydroxides. But how about alkali? Does all metal oxides and metal hydroxides also can called as alkali as long as it's soluble? Or alkali only include metal hydroxide that is soluble? Thanks.
2007-10-18 23:03:34 · 3 answers · asked by Steven L 2 in Science & Mathematics ➔ Chemistry
An alkali is a soluble base. If a metal oxide does dissolve (and there aren't many that do) it forms a hydroxide solution and is called an alkali.
2007-10-18 23:07:33 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
See.. by using diverse concepts: A substance that may ionize to grant OH ions is a base (Arrhenius); A substance which accepts H+ is a base (Bronsted-Lowry); A substance which accepts a pair of electrons is a base (Lewis). Any substance which falls into every person or extra desirable than a type of definitions is a base. An alkali is a definite form of base it fairly is soluble in water. each base isn't an alkali. see no remember in case you are able to comprehend those statements:- "each ALKALI IS A BASE yet each BASE isn't AN ALKALI" "each ARRHENIUS BASE IS AN ALKALI" to that end you are able to discover which you won't be able to say that base doesnt dissolve in water. this is in basic terms that we've a definite call for bases which dissolve in water to grant OH ions: alkali. A base might or won't supply OH in water or maybe might or won't be soluble in water, yet an alkali consistently has the two those properties. Ca(OH)2, NaOH, Ba(OH)2 are base as properly as alkali yet NH3 is barely a base (Bronsted) no longer alkali. the foremost factor is that a base it fairly is soluable in water is an alkali while a base which isn't soluable in water isn't an alkali. it fairly is declared that alkali is a subset of bases.
2016-12-15 03:44:23 · answer #2 · answered by ? 4 · 0⤊ 0⤋
alkali
2007-10-18 23:06:08 · answer #3 · answered by sexy s 1 · 0⤊ 1⤋