Code: 257 403 0731
Pass: HELLO
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Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

What type(s) of intermolecular forces are expected between ch3ch2cooh molecules? dipole forces, induced dipole forces, hydrogen bonding

Which of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green