It is known that the reaction A - B is second order with a rate constant of
k= 0.1 s-1 a 200°C. If the initial
concentration of A is 0.5 M, what is the
concentration of A after 30 seconds?

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

Identify and describe the three ways that mutations affect organisms.

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump