Use the data shown below to determine the enthalpy of reaction per mole of zinc. Hydrochloric acid turns blue litmus paper to red and shows no effect with red litmus solution. Zinc metal reacts with hydrochloric acid according to the following balanced equation. As a result of the reaction of zinc (Zn) and hydrochloric acid (HCl) produces zinc chloride (ZnCl 2), hydrogen (H 2) Use the data shown below to determine the enthalpy of reaction per mole of zinc. Answer Save. There are many other chemical reactions that generate gases as one of their products. The process of gaining an electron is known as reduction. For example, the ionic equation for the reaction of magnesium with hydrochloric acid is: 2H + (aq) + Mg(s) → Mg 2+ (aq) + H 2 (g) State and explain whether zinc oxide is a base, an alkali, or both. Relevance. 8.45 g Zn x (1 mole Zn / 65.4 g Zn) = 0.129 moles Zn. 5 g of zinc is treated separately with an excess of (a) dilute hydrochloric acid and (b) aqueous sodium hydroxide. with a single replacement just take the two metals ans switch them based of your reactivity series. Zinc and hydrochloric acid react according to reaction if 0.30 mole zinc are added to hydrochloric acid ,containing0.52 mole HCl, how many moles of H2 are produced. The reaction is called an oxidation reaction because one element loses electrons and another gains electrons. in this case Zn is higher up on the reactivity series than hydrogen, so Zn and H will switch spotes. Acids and Bases React with Metals. Write the chemical reactions in each case. Zinc reacts with hydrochloric acid according to the reaction equation: Zn(s) + 2HCl(aq) ARROW ZnCl2(aq) + H2(g) How many milliliters of 2.50 M HCl(aq) are required to react with 8.15 g of Zn(s)? Dilute hydrochloric acid is added to granulated zinc taken in a test tube. Therefore, zinc barely replaces hydrogen in water. Precautions 1. Zinc reacts with hydrochloric acid according to the reaction equation Zn (s)+2HCl (aq)--> ZnCl2 (aq) + H2(g) How many milliliters of 2.50 M HCl(aq) are required to react with 3.55 g of an ore containing 37.0% Zn(s) by mass? Acids react with most metals to form a salt and hydrogen gas. 6 Answers. The process of losing an electron is known as oxidation. Hydrochloric acid should be handled with care because it can bum skin and clothes. As discussed previously, metals that are more active than acids can undergo a single displacement reaction.For example, zinc metal reacts with hydrochloric acid, producing zinc … i) Marble chips ii) dilute hydrochloric acid iii) zinc granules. Chemistry-Gases. Get an answer for 'Zinc reacts with hydrochloric acid in a single replacement reaction. (d) Hydrogen gas … Hydrochloric acid gives carbon dioxide gas with sodium carbonate. What do you expect will happen to the pressure inside the reaction flask if it is closed with a rubber stopper before the reaction? Solid zinc (Zn) reacts with hydrochloric acid (HCl) in a single replacement reaction to produce zinc chloride (ZnCl2) and hydrogen gas. Zn(s) + 2H+(aq) -> Zn^2+(aq) + H2(g) a. Zn(s) -> Zn^2+(aq) + 2e-. Which one of the following will be required to identify the gas evolved when dilute hydrochloric acid reacts … a) What are the products of the chemical reaction that occurs when zinc metal is added to an aqueous solution of Hydrochloric acid? The pressure will decrease. In order to liberate a hydrogen ion from $\ce{H2O}$, this must occur: $$\ce{H2O -> H^+ + OH^-}$$ This reaction happens infrequently in water, so concentrations of $\ce{H^+}$ are very low. Since reducing agent is oxidized in a redox reaction, then zinc is the reducing agent. The pressure will not change. (b) Zinc reacts with acid and hence chemical reaction takes place. Zinc reacts with hydrochloric acid according to the reaction equation shown. Single Replacement Reaction of Zinc + Hydrochloric Acid? (c) Copper metal is displaced and it is reddish brown in colour. 1 decade ago. Description: Observation of the oxidation of zinc metal by hydrochloric acid to form hydrogen gas and zinc chloride. The diagram shows pieces of apparatus used to collect gases. Subjects: Oxidation/reduction, gas forming reaction, acid properties, net ionic equations, exothermic reactions. In the reaction between zinc and hydrochloric acid, the zinc atoms are oxidized and lose two electrons. snappy. 2. asked May 11, 2020 in Chemical Reaction and Catalyst by Mubarak01 ( 48.6k points) chemical reaction and catalyst The hydrogen in $\ce{H2O}$ is covalently bonded to the oxygen, so it is difficult for the hydrogen to react. 1. Click hereto get an answer to your question ️ 4. 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