C3 Test

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  • Created by: Bossy149
  • Created on: 27-04-16 19:48
Why is it easier to loose electron in outer shell in larger atoms
Due to the shielding effect of the other atoms
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Does reactivity increase or decrease down group 7
Decreases
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Does reactivity increase or decrease down group 1
Increases
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How is the modern periodic table arranged
Atomic Number
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How is hard water formed
Gains Ca2+ ions
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How is scum formed
Calcium ions react with stearate (soap)
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Soft water will easily form a _____
Lather
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Why can hard water be temporary
Because when it's heated it can be broken down into its original substances. Calcium ions can be removed
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How does sodium carbonate make hard water soft
Removes calcium ions by forming calcium carbonate precipitate
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How does a catalyst lower activation energy
Provides an alternative route for reaction
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How do you calculate energy changed
Energy absorbed - energy released
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Products will have more energy in what reaction
Endothermic
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What pressure is produced in the haber process
200 atmospheres
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What temperature is used in the haber process
450 degrees
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What is recycled in the haber process
Unreacted hydrogen and nitrogen
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What does the compustion of alcohol produce
Carbon dioxide and water
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Formula for alcohols
CnH2n+1OH
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Other cards in this set

Card 2

Front

Does reactivity increase or decrease down group 7

Back

Decreases

Card 3

Front

Does reactivity increase or decrease down group 1

Back

Preview of the front of card 3

Card 4

Front

How is the modern periodic table arranged

Back

Preview of the front of card 4

Card 5

Front

How is hard water formed

Back

Preview of the front of card 5
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