The list describes the human rights record of which us president

In which of these cases are the two wave points considered to be in phase with each other?

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

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