For a reaction : M + 2N → P + 2Q, the initial rate , − []/ is 2.4 x 10^-2 Ms-1 . What is the value 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