C6.5 Electrolysis revision

Slides:

Advertisements

Similar presentations

Advertisements

Starter Write the formulae for the following: a) Oxygenb) Methane c) Chlorined) Calcium chloride e) Neonf) Lithium oxide.

Starter 1. What types of elements are present in covalent compounds? 2. What can be said about the conductivity of covalent compounds? 3. What types of.

Electrolysis Electrolysis breaks down ionic substances into simpler substances by using electricity!

Electrochemistry making elements using electricity

Electrolysis project Electrode: Is an electrical conductor that is used to pass current through an electrolyte.

Sea of delocalised electrons Oppositely charged ions Opposite charges attract Electrostatic forces of attraction Giant structure Soluble in polar solvents.

Electrolysis ‘splitting up compounds using electricity’

Yr 10 Electrolysis project. Yr 10 Electrolysis project.

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.

C2 REVISION – CHAPTER 1 – STRUCTURE & BONDING

CHEMISTRY DEPARTMENT WAID ACADEMY Standard Grade Topic 7.

Electrolysis. –A redox reaction that is made to occur by passing a direct electric current through an electrolyte Electrolyte –is a liquid that conducts.

Electrolysis Electrolysis of Water.

ELECTROLYSIS Decomposition using an electric current.

APPLICATIONS of REDOX REACTIONS. ELECTROPLATING Electroplating is the use of electrolysis to apply a thin layer of one metal over another.

Explain the process of electrolysis and its uses

Properties of substances SG Chemistry, Topic 7. Conductivity of elements and compounds Standard Grade Chemistry Topic 7.

REVISION ELECTROCHEMISTRY. OXIDATION is a loss of electrons An increase in oxidation number REDUCTION is a gain of electrons A decrease in oxidation number.

C2 REVISION – CHAPTER 1 – STRUCTURES & BONDING

IGCSE. Why do atoms bond? What is an ionic bond?

Ionic Bonding  Electrons are transferred  Electronegativity differences are generally greater than 1.7  The formation of ionic bonds is always exothermic!

REVISION ELECTROCHEMISTRY. OXIDATION Oxidation is a loss of electrons The oxidation number increases E.g. Electrodes where oxidation take place will reduce.

Title: Lesson 6 Electrolytic Cells Learning Objectives: – Describe electrolytic cells – Identify at which electrode oxidation and reduction takes place.

Electrolytic Cells Section 9.2. Vocabulary Electrolysis: electrical energy used to bring about a non-spontaneous redox reaction Electrolyte: any substance.

Starter 1. What is electricity? 2. Write the formula for Calcium chloride 3. What type of bonding is present in the following: a) Phosphorous chloride.

C2 REVISION – CHAPTER 1 – STRUCTURES & BONDING

9.5 Electrolytic Cells. Match up the words with their descriptions Test for Oxygen Test for Hydrogen Electrolyte Relights a glowing splint Makes a ‘popping’

What are the two equations used to calculate rates? Rate of reaction = amount of reactant used Time And Rate of reaction = C2 REVISION – Section C2.4.1.

Electrolytic Cells. An electrolytic cell is an electrochemical cell that undergoes a redox reaction when electrical energy is applied. It is most often.

C2 REVISION – CHAPTER 1 – STRUCTURES & BONDING

Learning Outcomes Unit 4 Electric Chemistry.

S2 Science Ions and Ionic Bonding.

C2 REVISION – Section C2.4.1 – Rates of Reaction

C2 REVISION – CHAPTER 1 – STRUCTURE & BONDING

C2 REVISION – CHAPTER 1 – STRUCTURES & BONDING

Electrolytic Cells.

Some Chemistry of the Periodic Table

C2 REVISION – CHAPTER 1 – STRUCTURE & BONDING

Macromolecular / giant covalent Molecular / simple covalent

C2 Key Questions.

C2 Topic 2: Ionic Bonding This topic looks at:

C2 REVISION – CHAPTER 1 – STRUCTURE & BONDING

Electrochemistry Lesson 5

Calderglen High School

Starter Under what conditions do ionic compounds conduct electricity?

State at room temperature Electrical conductivity

C2 REVISION – CHAPTER 1 – STRUCTURE & BONDING

Properties of Bonds Nat 5

Macromolecular / giant covalent Molecular / simple covalent

Make sure you revise the following:

Bonding properties To know that there are 3 types of bonding

C2 REVISION –STRUCTURES & BONDING

C2 Topic 2: Ionic Bonding This topic looks at:

Title: Electrolytic cells

C2 REVISION – STRUCTURES & BONDING

C2 REVISION – CHAPTER 1 – STRUCTURES & BONDING

Six mark questions A space probe landed on the surface of one of Jupiter’s moons. Scientists are very interested in Titan’s atmosphere because they think.

Calderglen High School

Links Keywords C3 Chemical reactions C3.4 Electrolysis 

Chemistry Revision: Reactivity Series

C6.2 Changes at the electrodes

Edexcel GCSE Chemical changes

Chemistry 5.2. Bonding and Properties

C4 Revision Define: mass number:…………………………………… ………………………………………………………….

Do Now From the list below, select the answers to the following questions: i) diamond ii)graphite iii) iodine Iv)sodium chloride v) silicon dioxide A)

Chemistry Chapter 4 – Chemical changes – reactivity series, reduction and oxidation Write the reactivity series in order from most reactive to the least.

Presentation transcript:

C6.5 Electrolysis revision Orange text books pages 102-109 Purple text books pages 152-161

Revise for test on Electrolysis next lesson What is electrolysis? What does electrolysis mean? Describe what electroplating is and why it’s used How to draw covalent bonds Electrolysis of salt (sodium chloride) – what is produced at the electrodes and why Why doesn’t solid sodium chloride conduct electricity but molten sodium chloride does? Electrolysis of aluminium REDOX reaction (OILRIG) Properties of graphite Electrolysis of copper chloride (what is produced at the electrodes and why) Know how to predict what is produced at the electrodes