A carbon carbon double bond has a greater bond than energy than a carbon carbon single bond. because of the greater bond a carbon carbon double bond is and than a carbon carbon single bonds

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the capital city of australia is canberra.

c is the answer because when something is left after something evaporates that shows the chemical change.

b is the correct answer

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fe 55.85 g/mol and h2o 18.02 g/mol.