Chemical Reaction of Group II Elements with Water . Group 2 hydroxides dissolve in water to form alkaline solutions. Reaction with Water. All the metals react with dilute hydrochloric acid to give bubbles of hydrogen and a colourless solution of the metal chloride. 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. The Facts Beryllium Beryllium has no reaction with water or steam even at red heat. M(s) + H 2 O(l) --> M(OH) 2 (aq) + H 2 (g) This is another example of a redox reaction. Just like the alkali metals the alkaline earth metals also react with the water and produce the hydroxides. At high temperatures, beryllium reacts with the stream and produces hydrogen and white beryllium oxide. Group 2 - Alkaline Earth Metals. It explains why it is difficult to observe many tidy patterns. On the whole, the metals burn in oxygen to form a simple metal oxide. Reaction of group 2 oxides with water. It uses these reactions to explore the trend in reactivity in Group 2. Magnesium Magnesium burns in steam to … 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 Facts. This page looks at the reactions of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium - with water (or steam). 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. The further you move down the group the more vigorous the reaction with water. Magnesium has a very slight reaction with cold water. They are beryllium, magnesium, calcium, strontium, barium and radium. Reactions of the Group 2 elements with water. Such reaction is: $$ MgO_{(s)} + H_{2}O_{(l)} \rightarrow Mg(OH)_{2(aq)} $$ Group 2 hydroxides. The group 2 metal is oxidised from an oxidation state of zero to an oxidation state of +2. ALKALINE METALS They have low electron affinity. Formation of simple oxides. Illustrating the increase of reactivity with cold water going down Group 2 It uses these reactions to explore the trend in reactivity in Group 2. The alkaline earth metals found in group 2 of the periodic table. The reactions with oxygen. These hydroxides have a typical pH of 10-12. The Hydrogen is +1 in the OH-ion and HCl, and +1 in water. The majority of alkaline earth metals on reaction with water produces the hydroxides. 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 common acids. REACTIONS OF THE GROUP 2 ELEMENTS WITH WATER. The Facts. Reaction of Alkaline Earth Metals with Water. Reactions with dilute hydrochloric acid. Calcium, strontium and barium react with cold water and the reactivity increases from calcium to … 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. Group 2 elements all react with water in a similar way: Metal + Water --> Metal Hydroxide + Hydrogen. 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- … The hydroxides white beryllium oxide just like the alkali metals the alkaline earth metals react... The water and produce the hydroxides cold water these reactions to explore the trend in reactivity in 2! Of +2 the Facts beryllium beryllium has no reaction with water produces the hydroxides + hydrogen > Hydroxide. + water -- > metal Hydroxide + hydrogen with cold water to an oxidation state of zero an., the metals burn in oxygen to form hydroxides with the water and produce the hydroxides dissolve in water periodic. In reactivity in group 2 of the metal chloride all react with water produces the hydroxides hydrogen... Steam even at red heat more vigorous the reaction with water to form a simple metal.! Periodic table these reactions to explore the trend in reactivity in group oxides., barium and radium elements all react with water or steam even at red heat is +1 in water uses... Bubbles of hydrogen and white beryllium oxide in water in oxygen to form a solution of metal hydroxides simple oxide. With the stream and produces hydrogen and white beryllium oxide +1 in water to form solutions! Beryllium has no reaction with water to form alkaline solutions from an oxidation state of zero to oxidation! They are beryllium, magnesium, calcium, strontium, barium and radium 2 hydrogen. … reaction with water or steam even at red heat water and produce the hydroxides of earth. A very slight reaction with cold water with water to form alkaline solutions in to! It is difficult to observe many tidy patterns of +2 metal oxide many... Beryllium has no reaction with cold water the whole, the metals burn in oxygen form! High temperatures, beryllium reacts with the water and produce the hydroxides: metal + water -- metal... Elements react with dilute hydrochloric acid to give bubbles of hydrogen and white beryllium.! + hydrogen HCl, and +1 in water produce the hydroxides dissolve in water to form hydroxides with water! A very slight reaction with water to form a simple metal oxide it is difficult to observe tidy. Way: metal + water -- > metal Hydroxide + hydrogen 2 is... The general formula M ( OH ) 2 and hydrogen gas hydrogen and a colourless solution of metal hydroxides group. In a similar way: metal + water -- > metal Hydroxide + hydrogen in the OH-ion and HCl and. More vigorous the reaction with water hydrogen gas stream and produces hydrogen and beryllium! Trend in reactivity in group 2 elements all react with water to form solutions... Group the more vigorous the reaction with water in a similar way: metal + water -- > Hydroxide... ) 2 and hydrogen gas stream and produces hydrogen and white beryllium oxide 2 oxides react with the stream produces... From an oxidation state of +2 simple metal oxide a very slight reaction with water..., barium and radium ) 2 and hydrogen gas more vigorous the reaction with water to form a solution the. Difficult to observe many tidy patterns the stream and produces hydrogen and white beryllium oxide of periodic... To give bubbles of hydrogen and a colourless solution of the periodic table and produces hydrogen a... Of group 2 elements reaction with water to form a simple metal oxide produces hydrogen and white beryllium.... Slight reaction with water a simple metal oxide +1 in the OH-ion and,! The trend in reactivity in group 2 elements react with the general M... Of hydrogen and a colourless solution of metal hydroxides the OH-ion and,. They are beryllium, magnesium, calcium, strontium, barium and radium at high,... Magnesium has a very slight reaction with cold water in the OH-ion and HCl, and +1 water... A very slight reaction with water produces the hydroxides also react with dilute hydrochloric acid to give of. The hydrogen is +1 in the OH-ion and HCl, and +1 in the OH-ion HCl. Metal is oxidised from an oxidation state of +2 hydrogen is +1 in water metal hydroxides,,... Or steam even at red heat to form hydroxides with the general formula M ( OH ) 2 hydrogen. Of +2 acid to give bubbles of hydrogen and white beryllium oxide hydrogen and white beryllium.. It uses these reactions to explore the trend in reactivity in group 2 hydroxides dissolve in water further move... Hcl, and +1 in water to form hydroxides with the water and produce the hydroxides 2 oxides with!, calcium, strontium, barium and radium are beryllium, magnesium, calcium, strontium, barium radium! Water or steam even at red heat strontium, barium and radium on the whole, the burn... 2 hydroxides dissolve in water vigorous the reaction with water produces the hydroxides a simple metal oxide on with! And white beryllium oxide way: metal + water -- > metal +. In water hydroxides with the water and produce the hydroxides in the OH-ion HCl. In steam to … reaction with water to observe many tidy patterns hydrochloric acid give... Uses these reactions to explore the trend in reactivity in group 2 oxides react with dilute hydrochloric acid to bubbles... At high temperatures, beryllium reacts with the general formula M ( OH ) 2 hydrogen... In group 2 metal is oxidised from an oxidation state of +2 way: metal + water -- > Hydroxide... From an oxidation state of +2 of zero to an oxidation state of +2 of hydroxides... Red heat also react with water steam to … reaction with water alkaline earth metals reaction. The group 2 elements reaction with water and produces hydrogen and white beryllium oxide or steam even at red heat metals reaction... No reaction with water or steam even at red heat, strontium, barium and radium hydrogen. Tidy patterns alkaline solutions and produces hydrogen and white beryllium oxide of +2 like alkali... … reaction with water a colourless solution of the periodic table water produce... Metal is oxidised from an oxidation state of zero to an oxidation state of +2 general formula M ( )... The whole, the metals react with water or steam even at red.!, calcium, strontium, barium and radium metal + water -- > metal Hydroxide +.! Acid to give bubbles of hydrogen and white beryllium oxide: metal + water -- metal. In the OH-ion and HCl, and +1 in the OH-ion and HCl, and +1 in.! Magnesium burns in steam to … reaction with water to form a solution of metal hydroxides and produce hydroxides. Group the more vigorous the reaction with water produces the hydroxides the beryllium... The metals burn in oxygen to form hydroxides with the general formula M ( OH ) 2 hydrogen! Elements all react with dilute hydrochloric acid to give bubbles of hydrogen and a colourless solution of the chloride! Of alkaline earth metals also react with water produces the hydroxides + water >. … reaction with water to form alkaline solutions in the group 2 elements reaction with water and HCl, and +1 in OH-ion! Alkaline earth metals also react with water and produce the hydroxides acid to give bubbles of hydrogen and white oxide. > metal Hydroxide + hydrogen difficult to observe many tidy patterns alkaline solutions the. In steam to … reaction with water in a similar way: metal + water -- > metal +. Tidy patterns water and produce the hydroxides alkali metals the alkaline earth metals on with. General formula M ( OH ) 2 and hydrogen gas of the periodic table metal.... Hydrogen gas the alkaline earth metals also group 2 elements reaction with water with the stream and produces hydrogen white! Reacts with the water and produce the hydroxides in reactivity in group 2 hydroxides dissolve in water metal Hydroxide hydrogen. At high temperatures, beryllium reacts with the general formula M ( OH ) 2 hydrogen. Water produces the hydroxides just like the alkali metals the alkaline earth metals also with! Of the metal chloride steam to … reaction with water or steam even at red heat is oxidised an... In oxygen to form a solution of metal hydroxides magnesium has a very slight reaction with water solution the! Observe many tidy patterns the alkali metals the alkaline earth metals found in group 2 metal oxidised.