(c) An alkali : Zn, Pb react with concentrated alkali on boiling to give the corresponding metallic salt and liberate hydrogen. Metals like potassium and sodium react violently with cold water. The zinc reacts with the acid releasing bubbles from the nicked area until nothing remains but a thin shell of copper. ##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? Explanation: ... zinc does react with steam but it is a very slow reaction. (b) With dil. Metals like aluminum, iron and Zinc do not react with cold or hot water. acids. Metals which react with steam form the solid metal oxide and hydrogen gas. Question 3. Metal are Cu, Hg, Ag, Pt and Au. The first five elements are highly reactive metals that will react with cold water, hot water, and steam to form hydrogen gas and hydroxides. This preview shows page 8 - 11 out of 18 pages. Remember that the aluminium reaction is much slower than you would expect because of its stable oxide coating. Zinc reacts readily with hydrochloric acid, while copper does not. In general, the more reactive the metal, the more rapid the reaction. Metals from magnesium to iron. These react vigorously (and even more vigorously the higher up the series you go) with cold water to form the metal hydroxide and hydrogen. - Magnesium does not react with cold water. Cu and metals below Cu do not react with dil. When zinc reacts with steam, zinc oxide and hydrogen gas are produced. Metals below magnesium in the reactivity series will not react with water unless additional energy is supplied in the form of heat. The reaction is similar to the one between magnesium and steam but is slower. 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) The zinc reacts slower with the steam than magnesium and does not glow brightly as it is converted to zinc oxide. This is done by heating the water until it turns to steam. A triangular file is used to nick the edge of a penny to expose the zinc slug below the layer of copper. How do you balance the chemical equation for the single-replacement reaction of zinc and hydrochloric acid to generate hydrogen gas. e.g. Adding a metal like copper to zinc ions will not displace the zinc since copper appears lower than zinc on the table. In general, Metals react with water and produce metal oxides and hydrogen gas. These react with steam to give a metal oxide and hydrogen. They react with steam to form metal oxide and hydrogen. The Reactivity Series. The reaction forms the metal oxide and hydrogen gas. When metals react with steam, the resultants are a metal oxide and hydrogen. acids : Metals like Zn, Fe, Pb form corresponding salt. The reaction depends upon the reactivity of metals. It reacts with hot water to form magnesium hydroxide and hydrogen. The Reaction of Metals with Water.. 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