Match each synthetic polymer to its use. polystyrene foam
used for ropes and nets
polyethylene
used for tires and soles of shoes
nylon
used for packaging materials
vulcanized rubber
used for plastic toys
5) Intro
Done
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african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

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