Chemistry general revision

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What is the formula for METHANE?
CH4
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What is cracking?
Where long-chain less useful alkanes are turned into smaller-chained more useful alkanes.
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What is the equation for fermentation?
Sugar --> Carbon Dioxide + Water
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How do you test for alkenes?
Bromine water (turns colourless).
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Are alkenes saturated or unsaturated?
Unsaturated
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What charge do electrons have?
A negative charge
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Fill in the missing word(s): When many monomers are joined together, they create ____________
A polymer
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Why is poly(ethene) used to make plastic bags?
Because it's light and stretchy.
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How do you test for unsaturated oil?
Bromine water (turns colourless).
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Fill in the missing word(s): Oils don't dissolve in water. They are ________
Immiscible
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Fill in the missing word(s): Scientists now accept Wegener's theory because they know the Earth's _______ and upper part of the mantle are cracked into tectonic plates.
Crust
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State two negative things that can happen at the boundaries between tectonic plates
-A volcanic eruption -An earthquake
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Other cards in this set

Card 2

Front

What is cracking?

Back

Where long-chain less useful alkanes are turned into smaller-chained more useful alkanes.

Card 3

Front

What is the equation for fermentation?

Back

Preview of the front of card 3

Card 4

Front

How do you test for alkenes?

Back

Preview of the front of card 4

Card 5

Front

Are alkenes saturated or unsaturated?

Back

Preview of the front of card 5
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