9 e reactions of metals & metal cmpds

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  • On this slide there are seven elements to be identified as metal or non-metal.
  • On this slide there are five elements to be identified as metal, non-metal or metalloid.
  • Point out the metal exceptions which do not display these properties, e.g. mercury, sodium.
  • 9 e reactions of metals & metal cmpds

    1. 1. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 20051 of 32 KS3 Chemistry 9E Metals and Metal Compounds
    2. 2. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 20052 of 32 Contents 9E Metals and Metal Compounds Metal compounds and acids Symbol equations Metals and non-metals Summary activities Metals and acids
    3. 3. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 20053 of 32 antimony (Sb) Is this element a or a ? H Li Na K Rb Cs Fr Be Sc Ti Mg V Cr Mn Fe Co Ni Cu Zn Ga Ge Se BrCa Kr Y Zr Nb Mo Tc Ru Pd Ag Cd In Sn SbSr TeRh Ba Hf Ta W Re Os Ir Au Hg Tl Pb Bi PoLa AtPt Ra Rf Db Sg Bh Hs Mt ? ?Ac ? Al P N O S Cl F Ne Ar Rn I Si Xe He B C AsFeFe Mg SPMg SP CuCu metal non-metal IISb Hard to say! Sb Metal or non-metal? iodine (I)iron (Fe)copper (Cu)phosphorus (P)sulfur (S)magnesium (Mg)
    4. 4. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 20054 of 32 Metals and non-metals in the periodic table The periodic table is a list of all the known elements which are arranged according to the similarities in their properties. Non-metals are mostly on the right. Metals are on the left and in the centre. What type of elements are between metals and non-metals? Xe
    5. 5. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 20055 of 32 Metals and non-metals in the periodic table
    6. 6. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 20056 of 32 Metal, non-metal or metalloid? H Li Na K Rb Cs Fr Be Sc Ti Mg V Cr Mn Fe Co Ni Cu Zn Ga Ge Se BrCa Kr Y Zr Nb Mo Tc Ru Pd Ag Cd In Sn SbSr TeRh Ba Hf Ta W Re Os Ir Au Hg Tl Pb Bi PoLa AtPt Ra Rf Db Sg Bh Hs Mt ? ?Ac ? Al P N O S Cl F Ne Ar Rn I Si Xe He B C As silicon (Si) metalloidfrancium (Fr) metalscandium (Sc) metalkrypton (Kr) non-metalcobalt (Co) metal What are metalloids? Which side are the non- metals on? Which side are the metals on? Metalloids sometimes behave like metals and sometimes like non-metals. Metals are on the left and in the centre. Non-metals are mostly on the right.
    7. 7. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 20057 of 32 What are the properties of metals? Properties of metals strong dense shiny malleable (easy to bend) high melting point sonorous (makes a sound) high boiling point ductile (can be drawn into wires) good conductor of electricity good conductor of heat Do all metals have these properties? solid
    8. 8. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 20058 of 32 Properties of metals and non-metals
    9. 9. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 20059 of 32 Metals and non-metals – true or false?
    10. 10. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200510 of 32 Using metals Can all metals do the same job?.
    11. 11. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200511 of 32 Using metals activity
    12. 12. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200512 of 32 Contents 9E Metals and Metal Compounds Metal compounds and acids Symbol equations Metals and non-metals Summary activities Metals and acids
    13. 13. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200513 of 32 magnesium + acid hydrogen burning splint Many metals react with acids. When this happens the metal fizzes as bubbles are produced. What do the bubbles mean? A gas is produced. How can you test to find out if the gas produced is hydrogen? Place a burning splint next to the mouth of test tube. A ‘squeaky pop’ as the gas ignites shows that hydrogen is the gas produced in this reaction. Reaction of metals with acids
    14. 14. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200514 of 32 metal nitratenitric acid Reaction of metals with acids When a metal reacts with an acid, the products are a salt and hydrogen gas. The salt produced depends on the metal and type of acid involved in the reaction:  When a metal reacts with hydrochloric acid, the salt produced is a metal chloride.  When a metal reacts with sulfuric acid, the salt produced is a metal sulfate.  When a metal reacts with nitric acid, the salt produced is a metal nitrate. metal hydrogensulfuric acid hydrochloric acidacid metal sulfate metal chloridesalt
    15. 15. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200515 of 32 zinc chloride Complete the word equations Complete the word equations for metals reacting with acid: hydrogennitric acid magnesium nitratemagnesium ? hydrogensulfuric acidiron iron sulfate? hydrogenhydrochloric acidzinc ? hydrogensulfuric acidlead lead sulfate??
    16. 16. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200516 of 32 potassium sodium calcium magnesium aluminium zinc iron lead (hydrogen)(hydrogen) copper silver gold increasingreactivity Reactivity of metals Some metals react more vigorously with acids than others. Metals can be listed in order of how reactive they are. This list is called the reactivity series. The more reactive the metal, the more vigorous the reaction. A metal that is below hydrogen will not react with dilute acids.
    17. 17. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200517 of 32 Contents 9E Metals and Metal Compounds Metal compounds and acids Symbol equations Metals and non-metals Summary activities Metals and acids
    18. 18. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200518 of 32 When a metal carbonate reacts with an acid, it fizzes giving off carbon dioxide gas. Carbon dioxide can be tested for using the limewater test. When carbon dioxide gas is bubbled through limewater, it turns the limewater cloudy or milky white. Reaction of metal carbonates with acids Most metal carbonates are not very soluble and so the reactions may be slow.
    19. 19. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200519 of 32 Reaction of metal carbonates with acids When a metal carbonate reacts with an acid, the products are a salt, carbon dioxide and water. The salt produced depends on the metal carbonate and type of acid involved in the reaction:  When a metal carbonate reacts with hydrochloric acid, the salt produced is a metal chloride.  When a metal carbonate reacts with sulfuric acid, the salt produced is a metal sulfate.  When a metal carbonate reacts with nitric acid, the salt produced is a metal nitrate. metal carbonate carbon dioxide waternitric acid metal nitrate sulfuric acid hydrochloric acidacid metal sulfate metal chloridesalt
    20. 20. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200520 of 32 carbon dioxide Complete the word equations sodium carbonate carbon dioxide nitric acid sodium nitrate water Complete the word equation for each reaction between a metal carbonates and an acid: calcium carbonate carbon dioxide nitric acid calcium nitrate water ? ? ? metal carbonate carbon dioxideacid salt water zinc carbonate zinc sulfate watersulfuric acid ?? ?
    21. 21. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200521 of 32 Using the products as a clue, what is the reaction between a base (such as a metal oxide) and an acid called? Reaction of metal oxides with acids When a metal oxide reacts with an acid, the products are a salt and water. metal oxide wateracid salt A metal oxide is a type of chemical called a base. Bases are chemicals that react with an acid to produce a salt and water. A base that is soluble in water is called an alkali. neutralization
    22. 22. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200522 of 32 iron chloride Complete the word equations Complete the word equation for each reaction between a metal oxide and an acid: nitric acid magnesium nitrate magnesium oxide ? watersulfuric acidzinc oxide zinc sulfate? hydrochloric acidiron oxide ? metal oxide wateracid salt water water? ? ?
    23. 23. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200523 of 32 Contents 9E Metals and Metal Compounds Metal compounds and acids Symbol equations Metals and non-metals Summary activities Metals and acids
    24. 24. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200524 of 32 Chemical formulae – what is the ratio of atoms? The name of a chemical can also be written as a formula. A formula uses chemical symbols and numbers to show the ratio of atoms of each element present in the chemical. calcium sulphate magnesium nitrate magnesium sulphate sodium sulphate calcium chloride Name of salt OSCaCaSO4 ONMgMg(NO3)2 OSMgMgSO4 OSNaNa2SO4 ClCaCaCl2 Ratio of atoms in saltFormula 1 2 1 1 1 2 1 1 2 1 4 4 6 4
    25. 25. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200525 of 32 What is the ratio of atoms in each salt? What is the ratio of atoms in each salt? calcium nitrate potassium sulphate potassium nitrate magnesium chloride sodium chloride Name of salt 6 O2 N1 CaCa(NO3)2 4 O1 S2 KK2SO4 3 O1 N1 KKNO3 2 Cl1 MgMgCl2 1 Cl1 NaNaCl Ratio of atoms in saltFormula
    26. 26. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200526 of 32 Writing equations using chemical formulae The names of chemicals in a word equation can be replaced with chemical formulae. When a chemical reaction is written using chemical formulae, the equation must be balanced. Write down the formula for each chemical. Count the number of atoms on each side of the equation. zinc hydrogenhydrochloric acid zinc chloride 1 Zn 1 H, 1 Cl 1 Zn, 2 Cl 2 H Where needed, adjust the numbers in front of the formula 2 H, 2 Cl so that the numbers of atoms on each side are balanced. Zn + HCl → ZnCl2 + H22
    27. 27. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200527 of 32 Writing and balancing chemical equations lead hydrogenhydrochloric acid lead chloride Use chemical formulae to write a balanced chemical equation for the reaction between lead and hydrochloric acid. Pb + HCl → PbCl2 + H22 Use chemical formulae to write a balanced chemical equation for the reaction between calcium oxide and hydrochloric acid. calcium hydrogenhydrochloric acid calcium chloride Ca + HCl → CaCl2 + H22
    28. 28. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200528 of 32 Balancing equations activity
    29. 29. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200529 of 32 Contents 9E Metals and Metal Compounds Metal compounds and acids Symbol equations Metals and non-metals Summary activities Metals and acids
    30. 30. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200530 of 32 Glossary alkali – A soluble base. base – A compound (such as a metal oxide) that reacts with an acid to produce a salt and water. conductor – A material that allows heat and electricity to travel through it easily. malleable – A material that can be hammered into shape. metal – An element found on the left of the periodic table which is usually hard, shiny and a good conductor. metal carbonate – A compound made of a metal, carbon and oxygen. It reacts with acid to produce a salt, carbon dioxide and water. metal oxide – A compound made of a metal and oxygen. It reacts with acid to produce a salt and water. property – A characteristic of a material.
    31. 31. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200531 of 32 Anagrams
    32. 32. © Boardworks Ltd 20041 of 20 © Boardworks Ltd 200532 of 32 Multiple-choice quiz

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