Extracting Metals A METAL ORE is a mineral or mixture of minerals from which it is “economically viable” to extract some metal. reactiveExtracting metals.

Slides:

Advertisements

Similar presentations

31/03/2017 Reactivity of Metals.

Advertisements

Metals and their Properties Metals have distinctive properties such as: 1. Electrical Conductivity 2. Good Thermal Conductivity 3. Strength 4. Malleability.

C1 REVISION – CHAPTER 1 – FUNDAMENTAL IDEAS

Reaction Types. Combination (Synthesis) Reactions Two or more substances combine to form a new compound. A + X  AX  Reaction of elements with oxygen.

1 Elements and their atoms Each element of the Periodic table is built from one type of atom Atoms have a nucleus containing protons and neutrons, surrounded.

Starter 1. The following metals were reacted with water. Put them in order of reactivity, with the least reactive metal first. Lithium, potassium, calcium,

Adding acids to metals Words – gold, corroded, fizzes, disappear If an acid is added to a (fairly reactive) metal the metal will be quickly ________ by.

Extracting Metals Prior Learning; a) Understand what happens to carbonates when they are heated b) Know that an ore contain a metal mixed with rock c)

Name the main gases in air, give the formula of each one and state their relative proportions. Use ideas about bonding and forces between molecules to.

+ Reactions Noadswood Science, Reactions To be able to describe how similar metals react with water and oxygen, and why noble gases do not react.

Making Metals Name ______________________.

Cracking!03 September 2015 Learning objective: To know what cracking is and why it’s so useful! Starter Name fractions from the fractional distillation.

Plant Oils Noadswood Science, Plant Oils To know how plants make oils, and how these are extracted Wednesday, September 09, 2015.

Finishing off from last time

Definitions Atom – Element – Compound – Mixture – Particles that make up all substances. A substance made up of only one kind of atom. A substance made.

D. Crowley, 2007 Metal & Reactivity. Thursday, September 17, 2015 To link the uses of a metal to its reactivity.

Making Changes Topic overview. The topic can be conveniently split into six interrelated sections  Oxidation/Reduction  Salts  Preparation of gases.

Write down the Reactivity Series from Potassium to Gold.

Thermal Decomposition Reactions. Stable and Unstable Substances Stable in Chemistry means unreactive in the conditions stated. Unstable means reactive.

Alkanes and Alkenes. Alkenes Alkanes Summary activities Combustion of alkanes Contents Cracking and polymerization.

C1a Rocks and Metals 2.2 Extracting Iron. Learning objectives Understand which metals can be extracted using carbon Understand which metals can be extracted.

Metals. Learning Objectives Order metals in order of reactivity Relate extraction method to reactivity Write word/symbol equations for reduction of metal.

Metals, Making Electricity and Corrosion. Metals The job that a metal is used for is determined by its physical and chemical properties. Physical properties.

Oils from plants C1.6. What do I need to know? Recall that oils can be obtained from plants Describe the properties of oils and formation of emulsions.

Metals. Learning Objectives Use reactivity data to determine a reactivity series Relate extraction method to reactivity of metals Write word/symbol equations.

L.O: To know how different metals are collected.  Where do metals come from?  What is an ore?  In the back of your book, name as many metals as you.

Year 9 Test GCSE Chemistry Revision Booklet PageDone? C1.3 Metals The Reactivity Series The Blast furnace Extraction methods Metals Key words Aluminium.

What are Ores? Most metals are too …………… to exist on their own in the ground. Instead they exist combined with other elements (typically o……….. or sulphur)

KEY WORDS: Atom Electron Proton Neutron Shell Electronic Configuration Orbit ASSESSMENT: Complete the table:Draw the symbol for carbon. Include its atomic.

Potassium Sodium Calcium Magnesium Aluminium Carbon Zinc Iron Copper Silver Gold More reactive 1.Complete the word equation: Copper oxide + sodium 

One plus, two plus, three plus, NO Three minus, two minus, one minus, NO.

CHEMISTRY DEPARTMENT WAID ACADEMY Metals. Which of the metals shown can be found uncombined in the Earth's crust? 20 1.Magnesium 2.Aluminium 3.Sodium.

M. Rahman C1 TOPIC 4 1) Why are gold and platinum found in the ground as uncombined elements? Answers Unreactive-don’t react with oxygen.

Extracting metals. Methods of extracting metals The Earth's crust contains metals and metal compounds such as gold, iron oxide and aluminium oxide, but.

09/03/2016 Chemistry 1. 09/03/2016 The structure of the atom Describe the structure of an atom.

Alkali metals Group 1 Lithium reactive Alkane Hydrocarbon Methane Single bond Alkene Hydrocarbon Methene Double bond Alloy Mixture Metal steel Aluminium.

Alkenes  a group of hydrocarbons with the general formula, C n H 2n where n is the number of carbon atoms in one molecule  contain the C=C functional.

Cracking Hydrocarbons L.O: To understand what cracking is and why it is useful A food packaging company is low on ethene to make polythene (cling film),

Global Warming The level of greenhouse gases in the atmosphere has gradually increased as a result of: Keywords: Oceans, Water Vapour, Photosynthesis,

Topic 3 Metals and their uses. Extracting metals Metals are found in the Earth’s crust They are often chemically combined with other elements – this is.

Extraction of Iron. As we have already discussed, carbon can be used to extract any metal found below it in the reactivity series. Potassium Sodium Magnesium.

Extracting metals.

10.3 Alkenes. References Assessment Objectives Describe, using equations the reactions of alkenes with hydrogen and halogens Describe,

Core Chemistry Revision To improve understanding of key topics.

C1 REVISION – CHAPTER 1 – FUNDAMENTAL IDEAS

C1 REVISION – CHAPTER 1 – FUNDAMENTAL IDEAS

Organic Chemistry Alkanes and Alkenes.

What should we already know?

How is copper ore turned into copper pipes?

C1 REVISION – CHAPTER 1 – FUNDAMENTAL IDEAS

C1 REVISION – CHAPTER 1 – FUNDAMENTAL IDEAS

C1 REVISION – CHAPTER 1 – FUNDAMENTAL IDEAS

EdExcel Additional Science

Tuesday, 13 November 2018 Unsaturated Oils

C1 REVISION – FUNDAMENTAL IDEAS

What should we already know?

24/02/2019 Carbon Chemistry OCR module 13 W Richards The Weald School.

The reactivity of metals

Presentation transcript:

Extracting Metals A METAL ORE is a mineral or mixture of minerals from which it is “economically viable” to extract some metal. reactiveExtracting metals from their ores depends on how reactive the metal is.

The Reactivity series Potassium Sodium Calcium Magnesium Aluminium Carbon Zinc Iron Tin Lead Copper Silver Gold Platinum Metals ABOVE CARBON, because of their high reactivity, are extracted by ELECTROLYSIS Metals BELOW CARBON are extracted by heating them with carbon in a BLAST FURNACE These LOW REACTIVITY metals blatantly won’t need to be extracted because they are SO unreactive you’ll find them on their own, not in a metal oxide

Uses of addition polymers Poly(ethene)Poly(propene) Poly(chloroethene), PVCPoly(styrene)

Disposal of plastics 1) Landfill sites - most plastics do not _________ which means that landfill sites are quickly filled up. Research is being carried out on __________ plastics. 2) Burning – this releases carbon dioxide which causes the ________ effect, as well as other ________ gases. 3) _______ – the best option, but difficult because of the different types of plastic Words – recycling, greenhouse, decompose, biodegradable, poisonous

Oilseed Rape Made from – Extracted by – It is so useful because – What is biodiesel?

Biodiesel Biodiesel can be made by _______ plant oils, such as Rapeseed, with Potassium Hydroxide and __________. Burning Biodiesel is carbon neutral. Explain.

Food additives Food additives are added to foods for 3 main reasons: –To improve taste –To improve appearance –To improve the shelf life of the product Potential problems with food additives:

Saturated or Unsaturated? Saturated means “full up”. They have a double bond that could instead become two single bonds. This means that other atoms can be added. It is not “full up”. unsaturatedAlkenes are unsaturated. Every carbon atom has already used all four of it’s bonds to join to four other atoms. No other atoms can be added. saturatedAlkanes are saturated.

Alkenes are unsaturated and so extra atoms can be added to alkene molecules. This forms the basis of a test to distinguish between alkanes and alkenes. When bromine water is added to an alkane nothing happens but when bromine is added to an alkene the red colour of the bromine disappears. + Br 2  Gas red colourless Bromine loses this red colour

Testing the saturation of oils If ‘Oil 1’ turns 5mls of Iodine colourless And ‘Oil 2’ turns 10mls of Iodine colourless And ‘Oil 3’ turns 15mls of Iodine colourless Which is the most/least saturated oil?

Test 1.Name 3 different plant oils. Say whether they come from a seed, fruit or nut. 2.Describe how are oils extracted from their source. 3.What is an emulsion?

Test 4.What are emulsions commonly used for? (give 4 examples). 5.What are food additives? 6.Why are food additives used? 7.What is an E-number?

Test 8.List 3 potential problems associated with food additives. 9.Describe how margarine is made from sunflower oil. 10.Which is healthier, saturated or unsaturated fats? Give 2 types of food for each.

Test 11.What is the difference between saturated and unsaturated fats? 12.How does Bromine help us to identify a saturated fat from an unsaturated fat? 13.What does polyunsaturated mean?

A company produces 1 million tins of baked beans a week. They need to take samples of the tins to test for safety reasons. –How often should they take samples? –What size samples should they take? The company decides to sample every 1000 th tin for testing. –Why is this not good enough? (2 reasons) Why can you not just test every single tin?