What type of energy do ethanol propane and butane all have? Which one gives off the most thermal energy as it burns what variable needs to be kept unchanged to make sure this comparison is fair?

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

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Light waves can move through , but they travel fastest when they move through a(n) .