IC2.32.4 Products from sodium chloride © Oxford University Press 2011 Products from sodium chloride.

Slides:

Advertisements

Similar presentations

Chlorofluorocarbons CFCs

Advertisements

IC S4 P1+2 – First hand investigation and analyse information from secondary sources to predict and explain different products of aqueous and molten NaCl.

6.3 Electrolysing brine Brine is salty water. It’s chemical name is sodium chloride, NaCl aq. Both elements are useful in thousands of products. 04 May.

Electrolysis Of Brine Noadswood Science, 2012.

Electrochemistry making elements using electricity

Halogens AKA “Salt-Formers” Group 17

Caustic Soda Learning Objectives:

I am learning to understand redox reactions EXAM TIPS: You may be asked to apply your understanding to industrial processes such as hair removal, plating.

Water and Weather Chapter Five: Earth’s Atmosphere 5.1 The Atmosphere 5.2 Layers of the Atmosphere 5.3 Earth is Just Right.

AIR POLLUTION. Air Pollution created by man Burning of Fossil Fuels  Examples of fossil fuels: Oil and coal.

Chlorine Dorothy Li (26) Stephanie Lowe (27) Michelle Mang (28) Nancy Mui (29)

Atoms, formulas and equations. Learning Objectives Know the properties of mixtures and compounds Explain how atomic structure relates to the Periodic.

THE CHLOR-ALKALI INDUSTRY. Chlorine is manufactured by the electrolysis of brine. Sodium hydroxide is produced at the same time. Three different methods.

Literacy Starter Activities Year 10 C1 Topic 3: Acids Focus: Reading.

1. Clues in rocks Geologists look for clues in rocks. They study them to see how the Earth’s surface has changed. They look at how the rocks have formed.

Obtaining alkalis/chlorine 7. understand that the first process for manufacturing alkali from salt and limestone using coal as a fuel caused pollution.

Sodium Hydroxide Experiment With Electrolysis

EXCESSIVE USE OF FERTILIZERS 1)Ground water contamination. 2)Acid rain 3)Ozone depletion 4)Killing of bacteria present in soil. 5)Can cause cancer.

Earth Science 4.3 Water, Air, Land Resources

Option C12.  The chlor-alkali industry refers to the production of chlorine, sodium hydroxide and sodium carbonate.  Cl2 and NaOH are made from the.

Chlorination and Dechlorination. » What is the purpose of a water treatment plant? ˃To remove all contaminants and make the water safe to drink » What.

Today’s lesson The allotropes of sulphur

Recall – quick questions 1.In which 2 layers of the atmosphere is ozone found? 2.Where is it considered “good” and “bad”? Why? 3.What happens to the structure.

Miss Nelson SCIENCE ~ CHAPTER 9 CLIMATE. Climate Change SECTION 4.

GLOBAL WARMING AND OZONE DEPLETION Agenda  Continuation from yesterday  Independent Practice  Articles & Follow Up Questions.

Unit C: Topic 6 NIMBY: Not In My Back Yard. Producing Wastes Since the industrial revolution, the amount of wastes being produced has been increasing.

Do Now: We use models to describe or represent things 1. Describe what you see in the beaker/container on the counter. 2. What do you think this beaker.

Environment & Human Health

CHEMICALS AND THE EARTH Electrolysis of brine (salty water)

Electrolysis Decide on the answer(s) then click and a rectangle will surround the correct answer(s).

_____________________________________________

Challenges for our future. Pollution intro  The rise of industry and the growth of world population in the past 200 years have led to a decline in a.

What is the Ozone Layer? On a piece of scrap paper, write down what you think the ozone layer is.

Copyright © Marshall Cavendish International (Singapore) Pte. Ltd. Depletion of the Ozone Layer Problem with ozone: At low altitudes, it can.

Further treatment of water. Further treatment of water: chlorination Chlorination Chlorine is added into water Small portion is enough to kill micro-

C hapter 5, Section 2: Chemical Properties BY: PROFESSOR CALEB, PROFESSOR JORDAN, DR. MADDIE, DR. NOLAN, AND RAMON M.D.

The Ozone Layer Done By: Yrmila Lalloo 1J.

Chlorine Facts Name: Chlorine Symbol: Cl Atomic Number: 17 Discovered: 1774 when it was combined with Discovered by: Scheele and in 1810 Davy declared.

Environmental Issues Causes and Effects. Greenhouse Effect  Cause:  Water vapor, Carbon Dioxide (CO2), methane, and other gases trap heat that radiates.

Electro Chemistry. Conductors pass electricity (metals and ionic compounds (melted or in solution)) Insulators do not pass electricity (Plastics, wood,

Chapter 22 Air and Noise Pollution The Air Pollution Problem ● Harmful materials to the environment are called pollutants. ● Harmful substances.

C3 Chemicals in Our Lives – Risks & Benefits Lesson 9: Electrolysis of Brine.

© Oxford University Press 2011 IC1.3.2 Images Images.

Human Activities and Climate Change 7.6 p

TIPS FOR ANSWERING LONGER ANSWER QUESTIONS Which command word is used? These tell you what to do. Explain, Describe, Discuss, Compare Check you know what.

ENVIRONMENTAL SCIENCE 5.4 The Waterworks. At the Waterworks When reservoirs or rivers are the source of drinking water, the water must be treated to remove.

ready Electrolysis anode cathode The cathode (-) attracts cations (+). The cations gain electrons and become neutral. The anode (+) attracts anions (-).

IC5.1.4 Calculations © Oxford University Press Calculations.

Elemental Elements By: Lucas, Jamie, Carolina and Maia. Chlorine.

Josh Newman.  It’s called Chlorine from the Greek word chloros, which means “Lime Green Gas.” This was the shade of green the gas turned when it was.

Ozone Depletion. Ozone Layer Ozone layer absorbs 97% to 99% of ultraviolet (UV) radiation from the sunOzone layer absorbs 97% to 99% of ultraviolet (UV)

Chapter  The electrochemical cells require the INPUT of energy rather than creating energy.

Acids and Bases.

Element from the periodic table

Operation Water Biology

Challenges for the Future

Pollution Search By Carol A. Alleyne.

Humans in the Biosphere

Uses of Alkalis and Chlorine

Welcome! 9/13/16 How is carbon and oxygen recycled throughout the ecosystem? Hint: Both processes have a formula. Write them both out.

Pollution Ecology.

Chapter 5 Section 2.

Q: What is the acid produced in the stomach?

Human Impact & the Environment

6.3 - Hazards and Benefits of compounds

Presentation transcript:

IC Products from sodium chloride © Oxford University Press 2011 Products from sodium chloride

IC Products from sodium chloride © Oxford University Press 2011 Chlorine is one of the products of the electrolysis of brine. It is used to make bleach and plastics, and to kill bacteria in drinking water and swimming pools.

IC Products from sodium chloride © Oxford University Press 2011 It is an extremely useful chemical and huge amounts are produced each year. However, chlorine is a poisonous gas and does cause environmental problems.

IC Products from sodium chloride © Oxford University Press 2011 Some pesticides containing chlorine have been banned because they were poisoning fish and birds.

IC Products from sodium chloride © Oxford University Press 2011  Chlorine used to be used to make a group of compounds known as chlorofluorocarbons (CFCs).  CFCs were used in fridges and aerosols. They were also banned because they were found to be damaging the Earth’s ozone layer.

IC Products from sodium chloride © Oxford University Press 2011 Sodium hydroxide is the other major product of the electrolysis of brine. It is used to make soap.

IC Products from sodium chloride © Oxford University Press 2011 Sodium hydroxide is extremely corrosive and can cause severe burns.

IC Products from sodium chloride © Oxford University Press 2011 Like chlorine, sodium hydroxide can cause problems if it gets into the environment. It can contaminate water sources, poison fish and make water unfit to drink.