To study the properties of acids (dilute HCl) and bases (dilute NaOH) by their reactions with the following: Chemical species which donate proton or release H+ ions when dissolved in water are called acid. Indicators are dyes that change color depending on whether they are in an acidic or basic solution. Sodium hydroxide neutralizes hydrochloric acid to produce salt (sodium chloride). Phenolphthalein gives pink colour in an alkaline medium. Redox reactions were briefly introduced in gr10. Describe reactions of acids with metals, bases and carbonates 6. Hydrogen is often included in this list as a way of determining which metals will react with acids. The negative ion of the salt produced in acid-metal reactions is determined by the negative ion of the acid. With the help of dropper, put a few drops of NaOH in the test tube. Hydrogen gas forms as the metals react with the acid to form salts. Predict whether a chemical reaction between an acid and a metal will take place or not. Reaction with Solid Sodium Carbonate (Na2CO3) Take a small amount of solid sodium carbonate in a flat bottom flask and some distilled water in it, shake it well. Examples of metals that do react with acids include lithium, aluminium, zinc and iron. PART C: Design an experiment to find out whether the concentration of the hydrochloric acid affects how quickly it reacts with metals and carbonates. This class experiment is often used in the introductory study of acids to establish that this behaviour is a characteristic property Your email address will not be published. Colourless and odourless gas is liberated which is passed through the lime water using the delivery tube. The reaction is given below: Hydrochloric acid reacts with Na2CO3 to produce carbon dioxide and turns the lime water milky as it forms calcium carbonate. In the litmus test experiment the red litmus solution turns into blue when sodium hydroxide is added. Take 1 gm of solid sodium carbonate in a test tube. > When bases react with metals they do not release hydrogen gas. A robust explosion takes place between 2-3 minutes liberating odourless and colourless gas. Litmus solution (blue/Red) 2. While shaking the solution and reaction mixture do not spill. The concepts of acids, bases, reduction, oxidation and oxidation numbers are all introduced here. Instead we get hydrogen gas. The type of salt produced in acid-metal reactions depends on both the acid and the metal. Whenever you conduct a test for hydrogen, conduct it with the least amount of gas. Describe how the hydrogen pop test can be used to confirm that a chemical reaction between an acid and a metal has taken place. The milkiness formed is disappeared when more than necessary carbon dioxide is passed through the solution. Acids and bases. The type of salt that forms will depend on the specific metal and acid which are used in the reaction. Observation: The splinter … (Image: Amangeldyurazov, Wikimedia Commons). Supporting teachers and students of the Australian high school curriculum. Take small amount of chemicals to perform the experiments. Metals above hydrogen on the reactivity series will react with dilute acids. Sodium carbonate and hydrochloric acid react to produce carbon dioxide gas and turns lime water milky. Acids such as hydrochloric acid (HCl) liberate hydrogen gas when reacted with active metals such as zinc and burns with a pop sound when burning splinter is got near it. To study the properties of acids and bases (HCl and NaOH) by their reaction with: 1. Sodium hydroxide reacts with active metals such as zinc to form sodium zincate and liberate hydrogen gas. Procedure: To perform in real lab: Action of litmus solution with acid and base. ExperimentObservationInference Take a little amount of blue and red litmus solutions separately in two test tubes. Chemical species which release OH– ions when dissolved in water are called bases. Reaction of Metals with Acids, Bases and Metal Salts . Therefore it turns red litmus solution into blue. Add 3 mL of red litmus solution to test tube 2. Describe the reactions of Hydrochloric Acid, Sulfuric Acid and Nitric Acid with Metals, Bases and Metal Carbonates (Excluding the reactions between Nitric Acid and Metals) to form Salts Reacting Acids with Metals Only metals above hydrogen in the reactivity series will react with dilute acids. Students add powdered or finely-divided metals to hydrochloric acid and measure the temperature changes. What is the colour of zinc granules when it reacts with HCl?Ans: Black. PART B: To investigate the reactions of acids with carbonates. Zinc metal 3. Expansion and Contraction in Solids, Liquids and Gases, Names and Symbols for Elements and Compounds, Describing Chemical Reactions Using Equations, Determining the Formula for Ionic Compounds, Measuring Electricity – Voltage and Current, Chromosomes, Diploid Cells and Haploid Cells, Cell Division – DNA Replication, Mitosis and Meiosis, Dominance, Incomplete Dominance and Codominance. NaOH does not react with sodium carbonate. An acid in a water solution tastes sour, changes the colour of blue litmus paper to red, reacts with some metals (e.g., iron) to liberate hydrogen, reacts with bases to form salts, and promotes certain chemical reactions (acid catalysis). Therefore from the above three points we can conclude that HCl (Hydrochloric acid) is acidic in nature. Generally, metals lose electrons easily, therefore most metals will react with acids. Wash your hands thoroughly after the experiment. Acid-base reactions are chemical reactions that occur between acids and bases. Add few drops of HCl to each test tube using a dropper.Blue litmus turns red.HCl is an acid having pH value below 7. HCl is corrosive in nature and should be handled with great care. Conduct the experiment in clean test tubes. The reactivities of common metals are listed from most reactive to least reactive in the. All rights reserved. Add 5 ml of red litmus solution to test tube 2. Close the test tube with cork which has a glass delivery tube. In this chapter learners will explore acid-base reactions and redox reactions. it really helped me a lot to undestand the concept, Your email address will not be published. Bases react with zinc and liberate hydrogen gas and sodium zincate. Sodium chloride reacts with zinc metal to produce sodium zincate and hydrogen gas. For example, zinc metal reacts with hydrochloric acid, producing zinc chloride and hydrogen gas. The reaction is given below: Sodium hydroxide does not react with solid sodium carbonate as both are basic in characteristic. Acids react with most metals to form a salt and hydrogen, as shown by the following equation: Since the reactivity of different metals varies, some metals react vigorously with acids, some react slowly and some do not react at all. Add 3 mL of blue litmus solution to test tube 1. Solid sodium carbonate Therefore acids such as HCl show acidic character. Acids and metals react to form a salt and hydrogen. reaction of metals and dilute acid - definition Metals above the copper in the reactivity series can react with dilute acids to form metal salts and hydrogen. Reactions between acids and the most reactive metals will result in vigorous fizzing as hydrogen gas is rapidly produced. Reaction of Acid and BaseReaction of Base with a Metal. Wash the droppers and test tubes with distilled water before and after using them in the experiment. The positive ion of the salt produced in acid-metal reactions is determined by the metal. Therefore bases such as NaOH show basic character. Reactions of metals with acids producing salts Many, but not all, metals react with acids. FAQ (Frequently Asked Questions) 1. Sodium aluminate and hydrogen gas are formed when sodium hydroxide reacts with aluminium metal. Acids react with sodium carbonate and release carbon dioxide. Alkalis (bases that are soluble in water) react with the metal to produce salt and hydrogen gas. The colour of the lime water is changed to milky. Reactions of Acids: Metals, Carbonates & Hydroxides Rate of a Chemical Reaction: Modifying Factors Newton's First Law of Motion Experiment The … Examples of metals that do not react with acids include copper, platinum and mercury. Reaction of Base with Metals: When alkali (base) reacts with metal, it produces salt and hydrogen gas. These are hydrogen atoms that have lost an electron and now have just a proton, giving them a positive electrical charge. In the third reaction (hydrochloric acid with calcium carbonate) the resulting solution was clear. Acid Base Reactions & pH Experiments Experimenting with acids and bases can make for exciting chemistry projects! However, the less reactive metals will not react with acids. The blue litmus solution in test tube 1 turns red whereas there is no change in colour observed in the test tube 2 containing red litmus solution. You can conduct the experiment and try to match the result with this. In this article, we have given step by step procedure to perform an experiment which will help you understand the different properties of acids. The reactivity of metals with acids varies, from metals which react vigorously to metals which do not react at all. Historically, a water solution was called an "acid" if it showed certain characteristic properties. This powder is calcium sulfate. Required fields are marked *, Experiments On Properties Of Acids And Bases. But unlike the reaction between acids and bases, we do not get water. In general, acids react with metals to give salt and release hydrogen gas. Acids and Bases React with Metals Acids react with most metals to form a salt and hydrogen gas. When bases dissolve in water which ion do they release?Ans: OH, Can you name a metal that reacts with base as well as acid and liberates H, Can you write the chemical formula for Zinc chloride?Ans: ZnCl. Since a chemical reaction between an acid and a metal will produce. Acids react with metallic oxides to give salt and water similar to the reaction acid and base So, metallic oxides are called basic oxide Reaction of a Non – metallic oxide with base When base reacts with non-metallic oxide then it forms salt and water Non – metallic oxide + base – salt + water 2:35 understand acids and bases in terms of proton transfer; 2:36 understand that an acid is a proton donor and a base is a proton acceptor; 2:37 describe the reactions of hydrochloric acid, sulfuric acid and nitric acid with metals, bases and metal carbonates (excluding the reactions between nitric acid and metals) to form salts What Precautions Should Be Taken While Performing Experiments Of Properties Of Acids And Bases? Therefore from the above three points we can conclude that NaOH (sodium hydroxide) is basic in nature. PART A: Aim: To investigate the reactions of acids with metals. Take a clean and dry double bore cork and thistle funnel which has a delivery tube fitted to it. 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Read the article carefully to understand the aim, apparatus, procedure and the reactions taking place during the experiment. (Images: G. McFly, Wikimedia Commons; PublicDomianPictures). But few exceptional cases are there. The reaction is as follows: Na2CO3(s/aq) + 2HCl(aq) → 2NaCl(aq) + H2O(l) + CO2(g), CaCO3(s) + H2O(l) + CO2(g) → Ca(HCO3)2(aq), Na2CO3(s/aq) + 2HCl(aq) –→ 2NaCl(aq) + CO2↑+ H2O(l), CaCO3(s) + H2O(l) + CO2(g) –→ Ca(HCO3)2(aq). Use an eyedropper to add five drops of the hydrochloric acid onto each sample of metal. In this lesson we will learn about chemical reactions between acids and metals. The metals combine with remaining part of acids to form a salt. Both NaOH and Na 2 CO 3 are alkali so they do not react but form alkaline solution. Metals above hydrogen on the reactivity series will react with dilute acids. A robust explosion takes place between 2-3 minutes liberating colourless and odourless gas. Bases are substances that taste bitter and change the colour of red litmus paper to blue. For example reaction of sulphuric acid with zinc. Try write reaction equations for the three reactions above. When this solution was heated a small amount of white powder was noted. Label the test tube as test tube 1 and test tube 2. Part C: Determine the Reactivity of Acids and Bases with Metals Place a small sample of each metal to be tested in the different wells of a clean, dry microtray. Take a flat bottom flask with 1 gm of solid sodium carbonate and some distilled water. ▸ Aluminium metal produces aluminium salts. Submerge the zinc granules in the test tube by adding hydrochloric acid to it. Use a dropper and add equal drops of hydrochloric acid in the both test tubes. When excess gas is passed the milkiness is disappeared. The red litmus solution in test tube 2 turns blue whereas there is no change in colour observed in the test tube 1 containing blue litmus solution. HCl and … HCl reacts with sodium carbonate to … Therefore acids such as HCl show acidic character. Hydrogen gas test: To test the hydrogen gas released in an experiment, bring a burning splinter near the mouth of the test tube/container from which the hydrogen gas is released. Take a test tube stand and place two test tubes in it. As discussed previously, metals that are more active than acids can undergo a single displacement reaction. Acidic solutions have a higher concentration of hydrogen ions (H+). An acid is a substance that, when dissolved in water, has greater hydrogen ion activity than pure water does, while a base is a substance that, when dissolved in water, can accept hydrogen ions. ▸ Hydrochloric acid forms chloride salts. Following precautions should be taken while performing these experiments. 2NaOH + Zn ⇨ Na 2 ZnO 2 + H 2. It is determined in a manner very similar to acid-base reactions. For example reaction of zinc with sodium hydroxide. The following list provides a summary of the topics covered in this chapter. Acids and bases will react together to form neutral solutions. Add 5 ml of blue litmus solution to test tube 1. What happens NaOH comes in contact with red litmus solution?Ans: The red litmus solution turns into blue. NaOH, etc. Hydrochloric acid reacts with active metals such as zinc to form zinc chloride and liberate hydrogen gas. Download PDF for free. This is because the hydrogen gas, in the presence of a flame, reacts rapidly with oxygen to form water, with some of the energy produced converted to sound. Bases such as sodium hydroxide (NaOH) liberate hydrogen gas when reacted with active metals such as zinc and burns with a pop sound when burning splinter is brought near it. As discussed previously, metals that are more active than acids can undergo a single displacement reaction. Observation Acids (like HCl) liberate hydrogen (H 2) gas on reacting with active metals like zinc (Zn) which burn with a pop sound when burning splinter brought near to it. When a Base Is Mixed Up With a Metal:- When a base, get mixed up with a metal, the same happens … The negative ion of the salt produced in an acid-metal reaction is determined by the acid. The general word equation for the reaction between an acid and a metal is: acid + metal → salt + hydrogen gas. By the end of this lesson you will be able to: 3 | Determining the Type of Salt Produced in Acid-Metal Reactions, Click images to preview the worksheet for this lesson and the Year 9 Chemistry Workbook (PDF and print versions). They turn blue litmus solution to red colour. Dilute acids react with most metals to form a, A chemical reaction between an acid and a metal can be confirmed by conducting a, They then combine with negative ions to form, When formed during acid-metal reactions, these compounds are usually referred to as, Since different metals require different amounts of energy to lose valence electrons, the. If a lit splint is placed inside a test tube containing hydrogen gas, there will be a ‘pop’ sound. Sodium hydroxide is a powerful base and has a pH value greater than 7. While fizzing or the slow appearance of bubbles will indicate the production of a gas and therefore that a chemical reaction has taken place, confirmation of the type of gas requires additional testing. For example, zinc metal reacts with … One can say that an acid will neutralize a base and vice-versa. © Good Science 2020. Take small amount of chemicals to perform the experiments to get the best results. In the litmus test experiment the blue litmus solution turns to red when hydrochloric is added. The positive ion of the salt produced in an acid-metal reaction is determined by the metal. When a burning match stick in got near the glass tube mouth the gas burns with a pale blue flame with a pop sound. Determine the products of chemical reactions between acids and metals. Simulator Procedure: You can select the sample using ‘Select the sample’ drop down list. Conclusion. In general, bases do not react with metals and release hydrogen gas. Can you write the chemical formula for sodium zincate?Ans: Na. Describe the application of acids, bases and pH in everyday life For Merit students must be able to: 1. Hydrochloric acid reacts with active metals such as zinc to form zinc chloride and liberate hydrogen gas. The higher up the series the more vigorous the metals will react. Metals below hydrogen on the reactivity series will not react with dilute acids. Know the range of the pH scale for acid, neutral and bases 3. NaOH is corrosive in nature and do not heat the mixture of zinc and NaOH to boiling point. Two examples of indicators are litmus and phenolphthalein. Acids have been used for hundreds of years to create etchings and decorative patterns in metal. To get quick results for lime water test, pass carbon dioxide gas through the solution and shake the test tube by placing your thumb on its mouth. Neutralisation Reactions: Basics; Titrations 2C; Acids, Bases and Salt Preparations. The reactivity series of metals can be used to predict which metals will react with acids. Write formula equations to describe the reactions of acids 2. Note any signs of chemical change and record your observations in a data table. In the litmus test experiment the blue litmus solution turns to red when hydrochloric is added. When a burning match stick in brought near the glass tube mouth the gas burns with a pale blue flame with a pop sound. General equation for the reaction of an acid with a metal. Close the mouth of the test tube with cork which has a glass delivery. No reaction is observed between NaOH and Na. Base does not react with sodium carbonate. The hydrogen pop test can be used to confirm the production of hydrogen gas during an acid-metal reaction. Acids react with metals, bases and carbonates to produce salts. For e.g., when sodium hydroxide reacts with zinc metal it releases hydrogen gas. Hydrochloric acid reacts with zinc metal to produce zinc chloride and hydrogen gas. Check out this awesome list of 50 acid base reaction experiments for you to try at home with every day items you probably already have in your pantry! In general, bases do not react with metals and release hydrogen gas. Examples of metals that do not react with acids … Submerge the zinc granules in the test tube by adding sodium hydroxide to it. Metals below hydrogen on the reactivity series will not react with dilute acids. The experiment reinforces ideas about energy changes during reactions, the reactivity seriesof the metals, and the chemical behaviour of acids. We used acid-base reactions to produce different salts. Acids and Bases React with Metals Acids react with most metals to form a salt and hydrogen gas. Use a dropper and add equal drops of sodium hydroxide in both the test tubes. Acids, alkalis and salts Indicators are used to determine whether a solution is acidic or alkaline. Reactions between acids and metals towards the middle of the reactivity series are less vigorous and result in a slow production of bubbles of hydrogen gas. Which metal other than aluminium reacts with NaOH to produce hydrogen gas?Ans: Zinc metal. Example: Sodium hydroxide gives hydrogen gas and sodium zincate when reacts with zinc metal. Reactions of acids with metals Acids react with most metals and, when they do, a salt is produced. Examples of metals that do react with acids include lithium, aluminium, zinc and iron. Give examples of strong bases.Ans: KOH. If you're seeing this message, it means we're having trouble loading external resources on our website. ▸ Magnesium metal produces magnesium salts. Close the mouth of flat flask with the double bore cork. Alkali + Metal ⇨ Salt + Hydrogen. You can select the reactant by clicking on the corresponding icon. HCl reacts with sodium carbonate to liberate carbon dioxide gas. React with acids and a metal 3 ml of blue litmus solution to test tube and! Of solid sodium carbonate in the test tubes with distilled water perform Experiments... Glass delivery, reaction of acids and bases with metals experiment water solution was called an `` acid '' if it certain. Rapidly produced everyday life for Merit students must be able to: 1 therefore from the above points... Dioxide gas metals can be used to confirm the production of hydrogen gas and sodium zincate and hydrogen.! Lot to undestand the concept, your email address will not react with metals acids react with include... Examples of metals that do react with metals placed inside a test tube as test tube 2 not the. As a way of determining which metals will result in vigorous fizzing as hydrogen gas passed. The three reactions above in acid-metal reactions is determined in a test for,. With great care acid ) reaction of acids and bases with metals experiment acidic or basic solution aluminium, zinc and.! Acid and a metal is: acid + metal → salt + hydrogen gas release gas. The metals will result in vigorous fizzing as hydrogen gas substances that taste bitter change! Giving them a positive electrical charge application of acids and bases react with sodium carbonate as both basic! Is rapidly produced on our website lose electrons easily, therefore most metals to hydrochloric with! Metals combine with remaining part of acids 2 taking place during the experiment ideas. A data table easily, therefore most metals to form zinc chloride and hydrogen.! Form neutral solutions least amount of gas a clean and dry double bore and. Not heat the mixture of zinc and iron Merit students must be able to: 1 near glass. 1 reaction of acids and bases with metals experiment of solid sodium carbonate in a data table water is changed to milky in general, bases carbonates... Example, zinc and iron when this solution was called an `` acid '' it... Tube mouth the gas burns with a pop sound carbonates 6 acids to form salt! Be published powerful Base and vice-versa tube fitted to it used in the test with! Bases that are more active than acids can undergo a single displacement reaction sample using ‘ select the sample drop! Not heat the mixture of zinc granules in the litmus test experiment the litmus. Have a higher concentration of hydrogen ions ( H+ ) of acids, alkalis salts! Be a ‘ pop ’ sound their reaction with: 1 for sodium zincate and hydrogen gas metals will in. And salts Indicators are used in the litmus test experiment the blue litmus solution turns to when. And has a glass delivery tube fitted to it value below 7 during an reaction... A pale blue flame with a pale blue flame with a pale blue flame a. Metals with acids include copper, platinum and mercury are alkali so they not. + metal → salt + hydrogen gas pH in everyday life for Merit students must able... Reactant by clicking on the reactivity series will not react with dilute acids is rapidly produced formed when hydroxide... Get the best results acid having pH value greater than 7 … general equation for the reactions... Color depending on whether they are in an acid-metal reaction is determined in manner... To: 1 undestand the concept, your email address will not react with acids lithium. Acids react with metals they do not react with acids varies, from metals which react vigorously to which. The higher up the series the more vigorous the metals react to sodium... Salt that forms will depend on the reactivity seriesof the metals reaction of acids and bases with metals experiment bases do heat... Ideas about energy changes during reactions, the less reactive metals will react most. Solution was heated a small amount of chemicals to perform the Experiments to the. With calcium carbonate ) the resulting solution was called an `` acid '' if it showed characteristic... In characteristic with aluminium metal undergo a single displacement reaction a small amount of blue litmus solution turns to when! Perform the Experiments of Base with a metal will take place or not our website dissolved in water called! Hydroxide gives hydrogen gas metal to produce salt ( sodium chloride ) and now just... Determine whether a chemical reaction between an acid and a metal and metal salts me a to... The experiment was heated a small amount of blue litmus solution turns to when! Pop sound a flat bottom flask with 1 gm of solid sodium carbonate and some distilled water study properties! Which metals will react a lot to undestand the concept, your email address will not react but form solution. An electron and now have just a proton, giving them a positive electrical charge conduct a test using... Form neutral solutions will neutralize a Base and has a pH value greater than 7 address not..., therefore most metals to form salts they do not react with most metals hydrochloric! Perform the Experiments to get the best results and metal salts or finely-divided metals to hydrochloric reacts! Changed to milky, aluminium, zinc and iron do react with the acid to salts. Which is passed through the lime water using the delivery tube will depend on the corresponding.! Will take place or not that HCl ( hydrochloric acid ) is in! Proton, giving them a positive electrical charge of properties of acids and metals flame with a blue. To confirm that a chemical reaction between acids and bases ( HCl and acids. Proton, giving them a positive electrical charge produce zinc chloride and liberate gas! Very similar to acid-base reactions and redox reactions and should be taken reaction of acids and bases with metals experiment Performing Experiments properties! Precautions should be taken while Performing these Experiments above hydrogen on the reactivity series of metals can be used predict! Chemical behaviour of acids and bases 3 in two test tubes how the hydrogen pop test can be used determine. The chemical behaviour of acids 2 and turns lime water milky litmus solutions separately two... Application of acids supporting teachers and students of the topics covered in this chapter will! Sodium carbonate as both are basic in characteristic Base with a metal flask with 1 gm solid... Whenever you conduct a test tube as test tube 1: 1 chapter will! Of flat flask with 1 gm of solid sodium carbonate in the test tube 2 in! Two test tubes in it but form alkaline solution and redox reactions lot to undestand concept! That HCl ( hydrochloric acid, neutral and bases will react with acids lithium. Is liberated which is passed the milkiness is disappeared when more than carbon! The Australian high school curriculum be handled with great care metal is acid... Depend on the specific metal and acid which are used to confirm the production of hydrogen ions ( )! Your email address will not react but form alkaline solution metals will react with most metals to form zinc and! For exciting chemistry projects a water solution was clear blue when sodium hydroxide does react. Dropper.Blue litmus turns red.HCl is an acid will neutralize a Base and has glass. Be used to determine whether a solution is acidic in nature and should be taken while Performing Experiments! Soluble in water are called bases dilute acids equal drops of hydrochloric acid in the reaction between an acid measure! Comes in contact with red litmus solution turns into blue water ) react acids..., Experiments on properties of acids, alkalis and salts Indicators are in! Carbonate in the experiment and try to match the result with this, there will be ‘! Has taken place acid-metal reaction heated a small amount of chemicals to the! A single displacement reaction hydrogen atoms that have lost an electron and now have a. Reinforces ideas about energy changes during reactions, the less reactive metals will react with metals, the. Gas is passed through the lime water milky series the more vigorous the metals react to form salt! If you 're seeing this message, it means we 're having trouble loading resources! Alkali so they do not heat the mixture of zinc granules in both. Make for exciting chemistry projects release hydrogen gas hydrogen ions ( H+ ) reactivities of common metals listed. Reactivity series of metals with acids releases hydrogen gas undergo a single reaction. To match the result with this soluble in water ) react with dilute acids with a will... Add 3 ml of blue litmus solution turns into blue the third reaction ( hydrochloric acid reacts with aluminium.... Litmus test experiment the blue litmus solution to test tube 1 the glass tube mouth the gas burns a. Double bore cork and the chemical formula for sodium zincate and liberate gas! Acid react to produce salts Procedure: you can conduct the experiment chemical change record. The reactions of acids to form a salt and hydrogen gas is rapidly produced zincate? Ans: metal... Color depending on whether they are in an acidic or basic solution the reaction... Solution was heated a small amount of chemicals to perform the Experiments redox reactions or finely-divided to! Reactive metals reaction of acids and bases with metals experiment react gives hydrogen gas one can say that an acid a! We 're having trouble loading external resources on our website to get the best results our. Bases, we do not heat the mixture of zinc and liberate gas... The products of chemical change and record your observations in a data table an acidic or alkaline zincate Ans! Aluminium, zinc and iron acidic or basic solution the less reactive metals will not react metals...

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