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heart
Other team wins 25 points!
Oops!
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seesaw
Swap points!
Okay!
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shark
Other team loses 20 points!
Okay!
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banana
Go to last place!
Oops!
15
×
Name one major component that cellulose is a part of.
Wood, paper, cotton...
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15
×
Definition of exothermic?
Reactions that transfer energy to the surroundings.
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15
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What type of molecule is condensed to form Cellulose?
Glucose molecules.
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15
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How do cross links change the polymer structure?
They add strong chemical bonds between the polymer molecules.
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15
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Predict one change in property of PVA glue when borax is added.
The PVA should become less runny / less flexible / more stretchy.
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15
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All plastics are formed from chains of smaller molecules and belong to what major category of substances?
Polymers.
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15
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What are cross links defined as?
Strong chemical bonds between the long polymer molecules.
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15
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What process links small molecules together to form polymer chains?
Addition polymerization.
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15
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What analogy is used to describe a monomer?
A strand of paper clips.
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monster
Reset all scores!
Oops!
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rocket
Go to first place!
Okay!
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rocket
Go to first place!
Okay!
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lifesaver
Give 15 points!
Oops!
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trap
No points!
Oops!
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gold
Win 50 points!
Okay!
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shark
Other team loses 25 points!
Okay!
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banana
Go to last place!
Oops!
15
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What common polymer-based material is used in the practical session?
PVA glue.
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15
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Why does the addition of cross links make it harder for the PVA polymer to move?
It will be harder for the polymer molecules to slide / move past each other
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15
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What does the term "meros" mean in relation to both polymers and monomers?
Meros means "unit".
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15
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What are the small molecules used to make the polymer chain called?
Monomers.
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