The Hydrogen is +1 in the OH-ion and HCl, and +1 in water. This page looks at the reactions of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium - with water (or steam). The Facts Beryllium Beryllium has no reaction with water or steam even at red heat. 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). Just like the alkali metals the alkaline earth metals also react with the water and produce the hydroxides. This page looks at the reactions of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium - with air or oxygen. Group 2 elements all react with water in a similar way: Metal + Water --> Metal Hydroxide + Hydrogen. M(s) + H 2 O(l) --> M(OH) 2 (aq) + H 2 (g) This is another example of a redox reaction. At high temperatures, beryllium reacts with the stream and produces hydrogen and white beryllium oxide. The majority of alkaline earth metals on reaction with water produces the hydroxides. Magnesium Magnesium burns in steam to … Reaction with Water. Illustrating the increase of reactivity with cold water going down Group 2 These hydroxides have a typical pH of 10-12. Reactions of the Group 2 elements with water. Magnesium has a very slight reaction with cold water. On the whole, the metals burn in oxygen to form a simple metal oxide. It uses these reactions to explore the trend in reactivity in Group 2. Reactions with dilute hydrochloric acid. The Facts. Group 2 elements are called alkaline metals because they form alkaline solutions, hydroxides, when reacting with water and their oxides are found in the earth’s crust. Reaction of Alkaline Earth Metals with Water. Reaction of group 2 oxides with water. The further you move down the group the more vigorous the reaction with water. They are beryllium, magnesium, calcium, strontium, barium and radium. 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. Formation of simple oxides. The alkaline earth metals found in group 2 of the periodic table. Such reaction is: $$ MgO_{(s)} + H_{2}O_{(l)} \rightarrow Mg(OH)_{2(aq)} $$ Group 2 hydroxides. Group 2 oxides react with water to form a solution of metal hydroxides. The Group 2 elements react with water to form hydroxides with the general formula M(OH) 2 and hydrogen gas. Group 2 - Alkaline Earth Metals. It explains why it is difficult to observe many tidy patterns. This page looks at the reactions of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium - with common acids. Group 2 hydroxides dissolve in water to form alkaline solutions. The reactions with oxygen. The group 2 metal is oxidised from an oxidation state of zero to an oxidation state of +2. It uses these reactions to explore the trend in reactivity in Group 2. 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