22112020 Chemistry 1 The structure of the atom

22/11/2020 Chemistry 1

The structure of the atom 22/11/2020 Describe the structure of an atom

Mass and atomic number 22/11/2020 Particle Relative Mass Relative Charge Proton 1 +1 Neutron 1 0 Electron Almost 0 -1 MASS NUMBER SYMBOL How do you find out the number of Ø Protons? Ø Electrons? Ø Neutrons? PROTON (ATOMIC) NUMBER =

Elements, compounds & mixtures 22/11/2020 What are Ø Elements? Ø Compounds? Ø Mixtures?

Periodic table Where are the Ø Reactive metals? Ø Transition metals? Ø Noble gases? Columns called groups Rows called periods 22/11/2020 Mendeleev He

Electron structure Describe how to work out the electron configuration of an element Nucleus 22/11/2020

Covalent bonding Give 4 facts about covalent bonding 22/11/2020

Ionic bonding Na 22/11/2020 Give 4 facts about ionic bonding + Na Cl Cl

Limestone is a sedimentary rock made up of mainly calcium carbonate. It’s cheap and easy to obtain by quarrying. What is limestone? How is it obtained? Give 4 uses of limestone 22/11/2020

Limestone What are the pros and cons of quarrying? 22/11/2020

The “Limestone Cycle” 22/11/2020 Calcium Carbonate (Ca. CO 3) + water calcium hydroxide Ca(OH)2 (slaked lime) calcium oxide + carbon dioxide Ca. O (quicklime) + CO 2 How is limestone converted into calcium oxide? How is calcium oxide converted into calcium hydroxide? How is calcium hydroxide converted into limestone?

Metal extraction 22/11/2020 What are the 3 ways of extracting metals? increasing reactivity Metals can either be found native in the ground (e. g. gold) or are found as metal ores (e. g. iron = haematite, aluminium = bauxite) potassium sodium calcium magnesium aluminium carbon zinc iron lead copper silver gold

Reduction What is reduction? 22/11/2020 carbon zinc iron lead copper

Electrolysis Give 5 facts about electrolysis + + Cu 2+ - 22/11/2020 potassium sodium calcium magnesium aluminium carbon

Bioleaching & phytomining 22/11/2020 Describe how these 2 new methods work

Recycling metals Give 5 reasons for recycling

Properties of metals Give 5 properties of metals 22/11/2020

Copper, Aluminium and Titanium 22/11/2020 For each metal give a property and a corresponding use

Alloys 22/11/2020 What is an alloy? Why are alloys better than pure metals? Gold mixed with copper Aluminium mixed with magnesium and copper Aluminiun mixed with chromium

Using Iron 22/11/2020 How is iron obtained? What are the problems of this iron? How can this iron be improved? Steel with a low carbon content is easily shaped Steel with a high carbon content is strong but brittle Steel with chromium and nickel is called stainless steel

Crude oil What is crude oil? How is it separated? 22/11/2020 D e c r e a s i n g t e m p e r a t u r e

Alkanes What are alkanes? What is the general formula? 22/11/2020

Patterns 22/11/2020 Increasing length Give 3 properties of an increased chain length

Burning Fossil Fuels 22/11/2020 What are the differences between the 2 types of burning? H H C H O O H H H C O H O H H O C O O H H

Sulphur dioxide What are the problems associated with sulphur dioxide? 22/11/2020

Alternative fuels What are the pros and cons of Ø Ethanol Ø Biodiesel Ø Hydrogen gas 22/11/2020

Cracking Gaseous hydrocarbon Long chain hydrocarbon Heated catalyst What is cracking? 22/11/2020 Liquid hydrocarbon How does it occur? Why does cracking need to happen?

Alkenes 22/11/2020 What are alkenes? What is the general formula? Why is there no alkene with only 1 C?

Testing for alkenes What is the test for alkenes? 22/11/2020

Making ethanol What are the 2 ways of making ethanol? What are the pros and cons for each? 22/11/2020

Monomers and Polymers How are polymers made? n C C n Ethene Poly(ethene) 22/11/2020

Properties & uses of polymers 22/11/2020 Give properties of polymers and corresponding uses

Extracting plant oils How are plant oils extracted? 22/11/2020

Emulsions What is an emulsion? What are emulsifiers? 22/11/2020

Emulsifiers - HT 22/11/2020 How do emulsifiers work? emulsifier water oil

Saturated and unsaturated oils 22/11/2020 What is the difference between saturated and unsaturated oils?

Hydrogenating oil- HT How and why is oil hydrogentated? 22/11/2020

The Structure of the Earth 22/11/2020 Describe the structure of the Earth

Tectonic plates Describe how tectonic plates are able to move 22/11/2020

Tectonic theory What is tectonic theory? What evidence is there for it? 22/11/2020

Movement at boundaries 22/11/2020 What is the impact of movement between plate boundaries? What type of plate movement causes each?

22/11/2020 Evolution of the Earth’s Atmosphere Carbon dioxide Methane Ammonia Oxygen Nitrogen Others Describe how and why the Earth’s atmosphere has changed 4 Billion years 3 Billion years 2 Billion years 1 Billion years Present day