C1electrolysis
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What is the element collected at the negative electrode during electrolysis of water? | Hydrogen
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| What are the products of electrolysis of Brine | Chlorine and Hydrogen and Sodium Hydroxide
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| Describe the test to show that a gas is Chlorine | Blue Litmus paper turns red then white
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| What is the definition of electrolysis? | The breaking down of compound into its element using an electric current
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| Describe the test to show that a gas is Oxygen | A glowing splint will relight
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| What is the compound of Oxygen and Hydrogen? | Water
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| What is the element collected at the negative electrode during electrolysis of brine? | Hydrogen
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| What is the element collected at the positive electrode during electrolysis of brine? | Chlorine
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| What are the products of electrolysis of acidified water | Hydrogen and Oxygen
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| Describe how you would carry out an electrolysis of water experiment | connect two electrodes to a power pack/battery; Place the electrodes in a beaker of water; place two test-tube full of water above the electrodes; switch on the current and collect the gases in the test-tubes
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| What are the products of electrolysis of HydroChloric Acid | Hydrogen and Chlorine
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| Describe the test to show that a gas is Hydrogen | Place a splint in the test-tube and there will be a pop
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| What is the formula of Oxygen gas? | O2
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| What is the formula of Hydrogen gas? | H2
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| What is the formula of Chlorine gas? | Cl2
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| Write the balanced equation for the electrolysis of Water into Hydrogen and Oxygen | 2 H2O --> 2 H2 + O2
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| What safety precaution should youtake when testing for Chlorine Gas. Why? | Well ventilated room with a draught or a fume cupboard. Chlorine is toxic
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| What is Chlorine gas used for? | Making PVC plastics
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Created by:
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