All work stations and apparatuses must be at the end of the lab experiment or work day. a. destroyed by fire. b. exchanged for new
c. cleaned
d. disposed of

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

Is this correct if not can u correct me

Salt in oceans comes from and of rocks