Naphtha can be cracked to produce molecules that are more useful. How does the size of these more useful molecules compare to the size of the molecules in naphtha?
Smaller
2 of 6
Titanium can be mixed with other metals to make a substance that is strong and lightweight. What term is used to describe a mixture of metals?
alloy
3 of 6
Poly(chloroethene) is non-biodegradable. State why this may be an advantage
Last long/longer/will not rot/decay/decompose/break down
4 of 6
What is the purpose of a catalyst?
to speed up reaction
5 of 6
What is meant by the term fuel?
A substance which burns/reacts with oxygen ½ mark releasing energy/heat
6 of 6
Other cards in this set
Card 2
Front
Naphtha can be cracked to produce molecules that are more useful. How does the size of these more useful molecules compare to the size of the molecules in naphtha?
Back
Smaller
Card 3
Front
Titanium can be mixed with other metals to make a substance that is strong and lightweight. What term is used to describe a mixture of metals?
Back
Card 4
Front
Poly(chloroethene) is non-biodegradable. State why this may be an advantage
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