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Stage in which a starβs outer layers have started to cool and grow outward?
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Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
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Chemistry, 22.06.2019 13:30
Apush or pull that moves or changes and object when to objects touch
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Chemistry, 23.06.2019 01:30
Which is an example of a highly unstable isotope that is often used in fission reactions?
Answers: 1
Name the alcohol and carboxylic acid (in that order) used to make the ester, n-pentyl pentanoate....
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