Chemical
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Ways to speed up a reaction | Volume
Heat
Temperature
Human Help
Energy
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| Neutralisation reactions | base gets added to an acid and removes the h+ ions. this reaction is called a neutralisation reactions because neutral water molecules are formed.
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| alkalis | Bases which are soluble in water are called Alkalis
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| Concentration | This is the amount of substance in a given volume. Increasing the concentration will increase the number of particles available to react and therefore there will be more collisions and the rate of reaction will increase
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| Surface Area | If surface area increases, more particles are available for collisions to occur and therefore the rate of reaction will increase.
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| Collision theory | Collision theory states that in order for a chemical reaction to occur, particles must collide with sufficient energy to break the bonds of the reactant. If the energy is not great enough, the reaction will not occur.
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| Temperature | If temperature of a reaction increases the rate of the reaction will increase because 1. Particles are moving faster
3. Particles have more energy therefore more of the collisions will be successful.
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| Acid + base = | Salt + water
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| Acid + metal= | Hydrogen + salt
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| Acid + carbonate= | Water + carbon dioxide + salt
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| Metal + oxygen = | Metal oxide
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| Metal + water = | Metal hydroxide + Hydrogen
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| Copper | Cu
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| Magnesium | Mg
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| Zinc | Zn
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| Aluminium | Al
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| Iron | Fe
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| Tin | sn
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| Lead | Pb
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| Silver | ag
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| Gold | Au
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| Calcium | Ca
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| Sodium | Na
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| Potassium | K
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| Oxygen | O
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| Hydrogen | H
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| Carbon | C
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| Sulphur | S
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| Nitrogen | N
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| Universal Indicator | Used to indicate the pH of a solution-usually in a solution form
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| Salt | Compound formed when a metal reacts with an acid
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| Compound | A substance made up of different atoms bonded together
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| pH scale | Used to indicate the pH of a substancce
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| Neutalise | to make a pH of a solution equal 7
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| Hydroxide ions | the ions released when alkalis dissolve in water
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| Hydrogen ions | A positively charged hydrogen atom
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| Acidic solution | A soultion with an excess of H ions
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| Litmus | Turns from blue to pink or red when in an acidic soultion
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| Hydrogen Test | Lighted stick makes this gas explode with a pop
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| Carbon dioxide test | Clear lime water turns milky when shaken in this gas
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| Acid | a chemical which releases H ions into solution - has a sharp, sour taste
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| Base | A chemical which removes H ions from solution (have a soapy feel.)
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| Mercury | Hg - A metal that is a liquid at room temperture
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| Oxygen | O - A as that is flammable
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| Hydrogen | H - A gas element that makes up 20% of the atmosphere
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| Silicon | Si- A non-metal element that was used to make a computer chips
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| Iron | Fe- An element that nails are made of
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| Caron | C - the element that diamonds are made of
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| Chlorine | Cl- A non-metal element used as a disinfectant in swimming pools
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| Aluminium | Al - A metal element that is very light - good for plaanes
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| Copper | Cu- A metal element that is used to make electrical wires
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| Gold | Au- A precious metal used for jewellery
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| Uranium | U - A radioactive element -used for nuclear fuel
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| Sulfur- | S- a non-metal element that produces acid rain
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| The speed a reaction goes at is called | rate of reaction
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| Increase the temperature- | The atoms speed up and therefore are more likely to collide with others they have more energy.
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| Increase concentration- | There are more atoms so more collisions
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| Increase surface area- | There are more atoms available for collisions
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Created by:
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