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Displacement is where one element pushes another element out of a compound. The displacement reaction only takes place if the element is igher in the reactivity series.

You have to learn the reactivity series. Below is the video i have showed in class but be warned it does not cover all the elements

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Neutralisation is where you add a acid and a alkali to make a salt.

General equation = ACID + ALKALI = SALT + WATER

When naming the salts use the powerpoint above

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Important experiment

The weighing is not important as that is a GCSE experiment. You just need to know what you see and how to set up the experiemnt.

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0:00 / 2:56•Watch full video

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Oxidation and Reduction reactions are the opposite of each other

Oxidation reactions are when a chemical combines with oxygen to form an oxide

Reduction reactions are when an oxide has the oxygen taken away from it.

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Chemistry Revision - Thermal Decomposition of Copper Carbonate

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This is where a substance is broken down by heat to form to new substances. You can tell a chemical reaction is endothermic if the equation has one reactant and more than one product.

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The most common form of exothermic reaction

Combustion only happens under certain circumstances

If one of the three factors in the triangle below are not present then combustion does not happen

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My power points are stored at padlet.com/wall/mrgribbinpowerpoint

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Here are two easy examples of exo and endothermic reactions

the first is burning of magnesium which is exo

The second is ammonim chloride and water which is endo

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In this experiment I will show you what Endothermic and Exothermic Reactions are. don't forget to check out my other videos at www.sciencebang.co.uk

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These reactions are easy to define

Exo means to give out in heat

Endo means to take in heat

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Chemical reactions are those you cant easily reverse. All types of cooking are the most common types of chemical reactions but there is also many other types of chemical reactions which are listed below

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Change in colour

Change in mass

new solid formed

Heat loss or gain

Gas give off

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Splits a mixture into its key components

for example colours into the colours they are made out of

or DNA splits into its key parts

ignore the terrible music in the video

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Use simple distillatio when 2 liquids perfectly mix

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Separating techniques used in Chemistry: simple distillation.

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Simple distillation is illustrated and outlined in this simple flash animation.

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If a substance does not dissolve then we separate by using filtration

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Separation techniques used in chemistry: Filtration

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Use of filtration to separate a suspension mixture

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Notes

1. Oil and water will not mix

2. Open tap to pour the bottom liquid into a beaker

3. close tap when all the water is gone

4. Pour the oil into another beaker

5. The two liquids are not perfectly seperated

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Separating techniques used in chemistry: Separating Funnel.

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This flash animation outlines what happens when a separating funnel is used to separate a mixture of two immiscible liquids such as oil and water or an ester and water. The least dense liquid forms a layer on top of the other. 1. Pour the mixture from a beaker into the separating funnel.

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When liquids mix they can be easily separated so it is a physical change

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When liquids mix they can be easily separated so it is a physical change

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Depending on how the liquids act they can be Separated in three different ways

1. Separating funnel

2. Simple Distillation

3. Chromatography

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Reversed by evaporation.

When you evaporate the water the solid will be left behind

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Physical reactions can be described as those that can be easily reversed. Think of changes of state.

They are easily reversed by heating or cooling. Other examples of physical reactions and ways to reverse them are shown below

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Reactions can have physical and chemical changes below i have split the types into the two types

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This revision page contains everything that i have covered in the last few weeks. All of the content may show up in your LO and your KS3 test

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Things to take note of:

1. The words are not important It is as it is at too high of a level

2. The water molecules come in and drag out the sugar molecules and spread hem throughout the solution

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Thomas Greenbowe | Department of Chemistry and Biochemistry

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2014 American Chemistry Society George C.

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Demonstration of how the fine nature of flour helps it to burn spectacularly! From the Peter Wothers lecture series - Fire and Flame