Acids and metals
description
Transcript of Acids and metals
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Acids and metalsAcids and metalsStarter QuestionStarter Question
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BrainstormingBrainstorming
Write Write down 5 down 5 things you things you know know about about acids and acids and metalsmetals
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The pH scaleThe pH scale Acid, neutral or alkali?Acid, neutral or alkali?
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Everyday AcidsEveryday Acids Write down the name of some common acid, Write down the name of some common acid,
alkaline and neutral solutionsalkaline and neutral solutions
AcidAcid AlkaliAlkali NeutraNeutrallvinegarvinegar bicarbonate of bicarbonate of
sodasodawaterwater
lemon juicelemon juice ammoniaammonia salt solutionsalt solution
Cream of tartarCream of tartar milk of magnesiamilk of magnesia
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Neutralisation (1)Neutralisation (1)
10 ml acid
alkali
10 ml acid2 ml
alkali4 ml alkali
6 ml alkali
8 mlalkali
10 ml alkali
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Neutralisation (2)Neutralisation (2)
10 ml alkali
acid
10 ml alkali2 ml acid
4 ml acid
6 ml acid
8 mlacid
10 ml acid
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Strong or weak?Strong or weak?AcidAcid
Put these acid solutions Put these acid solutions in order (strong to in order (strong to
weak)weak)
AlkaliAlkaliPut these alkali Put these alkali solutions in order solutions in order (strong to weak)(strong to weak)
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Neutralisation productsNeutralisation products
1.1. What are the two What are the two reactantsreactants of of neutralisation reaction?neutralisation reaction?
2.2. What are the two What are the two productsproducts of a of a neutralisation reaction?neutralisation reaction?
3.3. How do you separate the two products?How do you separate the two products?Remove the water by evaporation the substance left behind is salt
Acid and alkaliAcid and alkali
Salt and waterSalt and water
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What is the variable you control?What is the variable you control?
What is the variable you measure?What is the variable you measure?
How will you keep your investigation fair?How will you keep your investigation fair?
What type of graph will you draw?What type of graph will you draw?
InvestigationInvestigation
The type of fizzy drink
The pH
Same volume of drink, same volume of indicator
Bar graph
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InvestigationInvestigation What is wrong with What is wrong with
this bar graph?this bar graph? Bars different widthsBars different widths No labels for barsNo labels for bars No label for vertical No label for vertical
axisaxis Scale of vertical axis Scale of vertical axis
is not regularis not regular Ruler was not used Ruler was not used
correctly to draw one correctly to draw one of the barsof the barsType of drink
0
4
11
10
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Everyday neutralisationEveryday neutralisation1.1. What would you use to neutralise a bee sting?What would you use to neutralise a bee sting?
2.2. What would you use to neutralise a wasp sting?What would you use to neutralise a wasp sting?
3.3. What would you use to neutralise acid heart burn?What would you use to neutralise acid heart burn?
4.4. What is used to neutralise plague acid?What is used to neutralise plague acid?
5.5. What would a gardener use to neutralise an acid soilWhat would a gardener use to neutralise an acid soil
An alkali- like bicarbonate of soda
An acid-like vinegar
An alkali-like milk of magnesia
The alkali in toothpaste- bicarbonate of soda
An alkali- like slaked lime
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Metal and metal compoundsMetal and metal compounds
Sort these into 2 groups- metals and Sort these into 2 groups- metals and compoundscompounds
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Metal and metal compoundsMetal and metal compounds
Metal compounds MetalsMetal compounds Metals
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Reactions- metals with waterReactions- metals with water
Put these metals into order (most reactive Put these metals into order (most reactive first)first)
potassium-flames
Sodium- fizzes violentlycalcuim-
lots of bubbles
Magnesium- a few bubbles
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Reactions- metals with acidReactions- metals with acid
Put these metals into order (most reactive Put these metals into order (most reactive first)first)
Lead- a few
bubblesgold- no bubbles
iron-some bubbles
copper- no bubbles
Magnesium-loads of bubbles
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Reactions- Metals with oxygenReactions- Metals with oxygen Put these metals into order (most reactive Put these metals into order (most reactive
first)first)
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The reactivity seriesThe reactivity series
Potassium (most Potassium (most reactive)reactive)
SodiumSodium LithiumLithium CalciumCalcium Zinc Zinc Iron Iron TinTin LeadLead CopperCopper Gold Gold Platinum (least Platinum (least
reactive)reactive)
1.Gold and potassium chloride2.Potassium and gold chloride3.Calcium and tin oxide4.Lead and zinc hydride5.Lithium and platinum iodide
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Splitting compoundsSplitting compounds What elements were seen at the electrodes when What elements were seen at the electrodes when
electricity was passed through copper chloride solution?electricity was passed through copper chloride solution?
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Splitting metal compoundsSplitting metal compounds
Name the elements produced from Name the elements produced from splitting these compoundssplitting these compounds
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Electroplating & ElectrolysisElectroplating & Electrolysis What is electrolysis?What is electrolysis?
What is electroplating?What is electroplating?
Why are some metals electroplated?Why are some metals electroplated?
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Acids and metals project (1)Acids and metals project (1) Find out about the Find out about the
Klondike Gold RushKlondike Gold RushSlide 1- Name and titleSlide 1- Name and titleSlide 2- What is gold and Slide 2- What is gold and
what is it used for?what is it used for?Slide 3- Why is gold so Slide 3- Why is gold so
expensive?expensive?Slide 4- Describe the events Slide 4- Describe the events
of the Klondike Gold Run. of the Klondike Gold Run. Slide 5- Websites used Slide 5- Websites used
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Acids and metals project (2)Acids and metals project (2) Find out how metals are Find out how metals are
extracted from their oresextracted from their oresSlide 1- Name and titleSlide 1- Name and titleSlide 2- Use of aluminiumSlide 2- Use of aluminiumSlide 3- How is aluminium Slide 3- How is aluminium
extracted?extracted?Slide 4- Use of ironSlide 4- Use of ironSlide 5- How is iron extracted?Slide 5- How is iron extracted?Slide 6- Use of goldSlide 6- Use of goldSlide 7- How do we get gold?Slide 7- How do we get gold?Slide 8- Websites used Slide 8- Websites used
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Acids and metals project (3)Acids and metals project (3) Find out about alloysFind out about alloysSlide 1- Name and titleSlide 1- Name and titleSlide 2- What is an alloy?Slide 2- What is an alloy?Slide 3- What is bronze?Slide 3- What is bronze?Slide 4- Uses of bronzeSlide 4- Uses of bronzeSlide 5- What is brass?Slide 5- What is brass?Slide 6- Uses of brassSlide 6- Uses of brassSlide 7- What is steel?Slide 7- What is steel?Slide 8- Uses of steelSlide 8- Uses of steelSlide 9- What is solder?Slide 9- What is solder?Slide 10-Uses of solderSlide 10-Uses of solderSlide 11- Websites used Slide 11- Websites used
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Revision (1)Revision (1)
Can I….Can I…. REDRED AMBERAMBER GREENGREENmeasure the pH of common solutions?
identify acids, alkalis and neutral solutions from the pH values?remember the lower the pH of an acid the greater the acidity?remember the higher the pH of an alkali the stronger the alkali?state that acids and alkalis combine to form a neutral solution?state that when an acid neutralises an alkali, a salt and water is formed?give real life examples of neutralisation?
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Revision (2)Revision (2)Can I….Can I…. REDRED AMBERAMBER GREENGREEN
do an investigation on pH of fizzy drinks?
list metals in order of reactivity with oxygen, water and acid?give examples of how reactivity relates to uses and sources of metals?state that more reactive metals can displace less reactive metal compounds from their solutions?state that electrolysis can be used to obtain a metal from a solution?describe the effects of electroplating?
give examples of how some metals are extracted?
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Important wordsImportant words
Use these words to help your spellingUse these words to help your spelling