Acids and metals
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Acids and metals. Starter Question. Brainstorming. Write down 5 things you know about acids and metals. Acid, neutral or alkali?. The pH scale. acidic. vinegar. lemon juice. neutral. salt solution. acidic. cream of tartar. alkaline. ammonia. bicarbonate of soda. Everyday Acids.

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Acids and metals

Acids and metals

Starter Question

JMcL 2009


Brainstorming

Brainstorming

  • Write down 5 things you know about acids and metals

JMcL 2009


The ph scale

Acid, neutral or alkali?

The pH scale

acidic

vinegar

lemon juice

neutral

salt solution

acidic

cream of tartar

alkaline

ammonia

bicarbonate of soda

JMcL 2009


Everyday acids

Everyday Acids

  • Write down the name of some common acid, alkaline and neutral solutions

JMcL 2009


Neutralisation 1

alkali

Neutralisation (1)

10 ml acid

10 ml acid

2 ml

alkali

4 ml

alkali

6 ml

alkali

8 ml

alkali

10 ml alkali

+

acid

acid

alkali

acid

Acid/Neutral/alkali?

neutral

JMcL 2009


Neutralisation 2

Neutralisation (2)

10 ml alkali

10 ml alkali

2 ml

acid

4 ml

acid

6 ml

acid

8 ml

acid

10 ml acid

+

acid

acid

alkali

acid

neutral

acid

Acid/Neutral/alkali?

JMcL 2009


Strong or weak

Acid

Put these acid solutions in order (strong to weak)

Alkali

Put these alkali solutions in order (strong to weak)

Strong or weak?

W pH12.0

X pH 7.1

Y pH 8.0

Z pH 9.3

A pH2.0

B pH 1.1

C pH 6.8

D pH 5.3

B A D C

W Z Y X

JMcL 2009


Neutralisation products

Neutralisation products

  • What are the two reactants of neutralisation reaction?

  • What are the two products of a neutralisation reaction?

  • How do you separate the two products?

Acid and alkali

Salt and water

Remove the water by evaporation the substance left behind is salt

JMcL 2009


Investigation

Investigation

  • What is the variable you control?

  • What is the variable you measure?

  • How will you keep your investigation fair?

  • What type of graph will you draw?

The type of fizzy drink

The pH

Same volume of drink, same volume of indicator

Bar graph

JMcL 2009


Investigation1

What is wrong with this bar graph?

Bars different widths

No labels for bars

No label for vertical axis

Scale of vertical axis is not regular

Ruler was not used correctly to draw one of the bars

Investigation

11

10

4

0

Type of drink

JMcL 2009


Everyday neutralisation

Everyday neutralisation

  • What would you use to neutralise a bee sting?

  • What would you use to neutralise a wasp sting?

  • What would you use to neutralise acid heart burn?

  • What is used to neutralise plague acid?

  • What 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

JMcL 2009


Metal and metal compounds

Metal and metal compounds

  • Sort these into 2 groups- metals and compounds

calcium

sodium nitrite

calcium chloride

sodium

aluminium pentachloride

iron

magnesium hydroxide

aluminium

magnesium

iron sulphate

JMcL 2009


Metal and metal compounds1

Metal and metal compounds

Metal compounds Metals

sodium

sodium nitrite

calcium

calcium chloride

aluminium

aluminium pentachloride

magnesium

magnesium hydroxide

iron

iron sulphate

JMcL 2009


Reactions metals with water

potassium

-flames

Sodium-fizzes violently

Magnesium- a few bubbles

calcuim- lots of bubbles

Reactions- metals with water

  • Put these metals into order (most reactive first)

potassium

sodium

calcium

water

magnesium

JMcL 2009


Reactions metals with acid

iron-some bubbles

Lead- a few bubbles

Magnesium-loads of bubbles

gold- no bubbles

copper- no bubbles

Reactions- metals with acid

  • Put these metals into order (most reactive first)

magnesium

iron

lead

copper=gold

acid

JMcL 2009


Reactions metals with oxygen

Reactions- Metals with oxygen

  • Put these metals into order (most reactive first)

copper

iron

gold

JMcL 2009


The reactivity series

The reactivity series

Predict if a reaction occurs

  • Potassium (most reactive)

  • Sodium

  • Lithium

  • Calcium

  • Zinc

  • Iron

  • Tin

  • Lead

  • Copper

  • Gold

  • Platinum (least reactive)

  • Gold and potassium chloride

  • Potassium and gold chloride

  • Calcium and tin oxide

  • Lead and zinc hydride

  • Lithium and platinum iodide

JMcL 2009


Splitting compounds

+

+

+

+

+

+

-

-

-

-

-

-

-

Splitting compounds

  • What elements were seen at the electrodes when electricity was passed through copper chloride solution?

chlorine

copper chloride

copper

JMcL 2009


Splitting metal compounds

Splitting metal compounds

  • Name the elements produced from splitting these compounds

1. calcium chloride

2. potassium bromide

3. magnesium flouride

4. iron oxide

1. calcium & chlorine

2. potassium & bromine

3. magnesium & flourine

4. iron & oxygen

JMcL 2009


Electroplating electrolysis

Electroplating & Electrolysis

  • What is electrolysis?

  • What is electroplating?

  • Why are some metals electroplated?

Using electricity to split

a compound into its elements

Using electricity to cover one

metal with another metal

Prevent metal reacting,

make more attractive or hard-wearing

JMcL 2009


Acids and metals project 1

Acids and metals project (1)

  • Find out about the Klondike Gold Rush

    Slide 1- Name and title

    Slide 2- What is gold and what is it used for?

    Slide 3- Why is gold so expensive?

    Slide 4- Describe the events of the Klondike Gold Run.

    Slide 5- Websites used

JMcL 2009


Acids and metals project 2

Acids and metals project (2)

  • Find out how metals are extracted from their ores

    Slide 1- Name and title

    Slide 2- Use of aluminium

    Slide 3- How is aluminium extracted?

    Slide 4- Use of iron

    Slide 5- How is iron extracted?

    Slide 6- Use of gold

    Slide 7- How do we get gold?

    Slide 8- Websites used

JMcL 2009


Acids and metals project 3

Acids and metals project (3)

  • Find out about alloys

    Slide 1- Name and title

    Slide 2- What is an alloy?

    Slide 3- What is bronze?

    Slide 4- Uses of bronze

    Slide 5- What is brass?

    Slide 6- Uses of brass

    Slide 7- What is steel?

    Slide 8- Uses of steel

    Slide 9- What is solder?

    Slide 10-Uses of solder

    Slide 11- Websites used

JMcL 2009


Revision 1

Revision (1)

JMcL 2009


Revision 2

Revision (2)

JMcL 2009


Acids and metals

Important words

  • Use these words to help your spelling

electrolysis

alkali

acid

iron ore

neutralisation

substance

salt

alkaline

neutral

displacement

water

acidic

electroplating

JMcL 2009


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