The group 2 metal is oxidised from an oxidation state of zero to an oxidation state of +2. Mg(OH) 2(s) + 2 HCl (aq) → MgCl 2(aq) + 2 H 2 O (l) The Mg ions remain 2+ The Oxygen is -2 in the OH-ion, and -2 in water. Reaction of Alkaline Earth Metals with Water. The Hydrogen is +1 in the OH-ion and HCl, and +1 in water. The alkaline earth metals found in group 2 of the periodic table. Just like the alkali metals the alkaline earth metals also react with the water and produce the hydroxides. Reactions of the Group 2 elements with water. M(s) + H 2 O(l) --> M(OH) 2 (aq) + H 2 (g) This is another example of a redox reaction. oxides of group 2 react with water to form hydroxide ions (OH-) and alkaline solutions of the metal hydroxide give the equation for calcium oxide reacting with water CaO (s) + H2O (l) -> Ca2+ (aq) + 2OH- … Magnesium Magnesium burns in steam to … Formation of simple oxides. REACTIONS OF THE GROUP 2 ELEMENTS WITH WATER. They are beryllium, magnesium, calcium, strontium, barium and radium. It uses these reactions to explore the trend in reactivity in Group 2. On the whole, the metals burn in oxygen to form a simple metal oxide. The Facts Beryllium Beryllium has no reaction with water or steam even at red heat. The further you move down the group the more vigorous the reaction with water. Illustrating the increase of reactivity with cold water going down Group 2 Reactions with dilute hydrochloric acid. Group 2 hydroxides dissolve in water to form alkaline solutions. Chemical Reaction of Group II Elements with Water . Group 2 - Alkaline Earth Metals. This page looks at the reactions of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium - with air or oxygen. This page looks at the reactions of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium - with water (or steam). Reaction of group 2 oxides with water. It explains why it is difficult to observe many tidy patterns. Calcium, strontium and barium react with cold water and the reactivity increases from calcium to … The Group 2 elements react with water to form hydroxides with the general formula M(OH) 2 and hydrogen gas. It uses these reactions to explore the trend in reactivity in Group 2. Group 2 oxides react with water to form a solution of metal hydroxides. ALKALINE METALS They have low electron affinity. All the metals react with dilute hydrochloric acid to give bubbles of hydrogen and a colourless solution of the metal chloride. REACTIONS OF THE GROUP 2 ELEMENTS WITH WATER This page looks at the reactions of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium - with water (or steam). The reactions with oxygen. These hydroxides have a typical pH of 10-12. Reaction with Water. This page looks at the reactions of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium - with common acids. 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