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1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6

What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer