Metals below magnesium in the reactivity series will not react with water unless additional energy is supplied in the form of heat. The first five elements are highly reactive metals that will react with cold water, hot water, and steam to form hydrogen gas and hydroxides. 2Al(s) + 3H 2 O(g) – Al 2 O 3 (s) + 3H 2 (g) 3Fe(s) + 4H 2 O(g) – Fe 3 O 4 (s) + 4H 2 (g) (c) An alkali : Zn, Pb react with concentrated alkali on boiling to give the corresponding metallic salt and liberate hydrogen. The zinc reacts with the acid releasing bubbles from the nicked area until nothing remains but a thin shell of copper. A triangular file is used to nick the edge of a penny to expose the zinc slug below the layer of copper. acids : Metals like Zn, Fe, Pb form corresponding salt. When metals react with steam, the resultants are a metal oxide and hydrogen. It reacts with hot water to form magnesium hydroxide and hydrogen. The reaction depends upon the reactivity of metals. - Magnesium does not react with cold water. e.g. The Reaction of Metals with Water.. Potassium, sodium, lithium and calcium react with cold water, see alkali metals and alkaline earth metals.. Metals in the reactivity series from magnesium to iron react with steam - H 2 O (g) but not water - H 2 O (l). Metal are Cu, Hg, Ag, Pt and Au. Metals which react with steam form the solid metal oxide and hydrogen gas. These react vigorously (and even more vigorously the higher up the series you go) with cold water to form the metal hydroxide and hydrogen. Metals like aluminum, iron and Zinc do not react with cold or hot water. Question 3. They react with steam to form metal oxide and hydrogen. In general, Metals react with water and produce metal oxides and hydrogen gas. When zinc reacts with steam, zinc oxide and hydrogen gas are produced. In general, the more reactive the metal, the more rapid the reaction. This preview shows page 8 - 11 out of 18 pages. The reaction forms the metal oxide and hydrogen gas. Remember that the aluminium reaction is much slower than you would expect because of its stable oxide coating. acids. Adding a metal like copper to zinc ions will not displace the zinc since copper appears lower than zinc on the table. Metals below [H] do not react even with steam. Cu and metals below Cu do not react with dil. Metals from magnesium to iron. ##B (1) Zinc does not react with hot water but it does react with steam to give zinc oxide and hydrogen.## |!|EMA031111027O|!| Which of the following metals do NOT burn on strong heating? Metals like potassium and sodium react violently with cold water. Zinc reacts readily with hydrochloric acid, while copper does not. The reaction is similar to the one between magnesium and steam but is slower. The zinc reacts slower with the steam than magnesium and does not glow brightly as it is converted to zinc oxide. 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