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What is the balanced equation for the reaction of a Group 2A(2) oxide with water?

2007-11-09 06:59:24 · 3 answers · asked by xxiangel 2 in Science & Mathematics Chemistry

3 answers

It produces an alkaline(basic) solution.

Using Calcium Oxide ; calcium is a group 2A metal.

CaO + H2O = Ca(OH)2 Calcium hydroxide which is basic.
The other metals in this group are ; Beryllium (Be), Magnesium(Mg), Strontium(Sr), Barium (Ba) & Radium (Ra).
Beryllium oxide is the least reactive, and reactivity increases down the group.
The general formula is
MO + H2O = M(OH)2 - where 'M' is a Group 2a metal.

2007-11-09 07:28:45 · answer #1 · answered by lenpol7 7 · 1 0

magnesium nitrate used in commerce is a synthetic product. it particularly is synthesized in a form of techniques. The reaction between nitric acid and magnesium steel 2 HNO3 + Mg ? Mg(NO3)2 + H2 or magnesium oxide 2 HNO3 + MgO ? Mg(NO3)2 + H2O leads to magnesium nitrate. Magnesium hydroxide and ammonium nitrate additionally react to form magnesium nitrate as ammonia is released as a by ability of-product. Mg(OH)2 + 2 NH4NO3 ? Mg(NO3)2 + 2 NH3 + 2 H2O on account that magnesium nitrate has a extreme affinity for water, heating the hexahydrate does no longer consequence in the dehydration of the salt. fairly, magnesium nitrate hexahydrate decomposes into magnesium oxide, oxygen, and nitrogen oxides. 2 Mg(NO3)2 ? 2 MgO + 4 NO2 + O2 The absorption of those nitrogen oxides in water is one available path thank you to synthesize nitric acid. inspite of the reality that that's inefficient, it does no longer require using yet another sturdy acid. Anhydrous magnesium nitrate is extensively utilized to advance the concentration of nitric acid previous its azeotrope of roughly sixty 8% nitric acid and 32% water. it is likewise from time to time used as a desiccant

2016-12-08 16:53:14 · answer #2 · answered by Anonymous · 0 0

Metal oxides are always either basic oxides or amphoteric oxides. Basic oxides dissolves in water to form an alkaline solution.

2007-11-09 07:03:50 · answer #3 · answered by TeenageGuy 3 · 1 0

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