This reaction was monitored as a function of time: a — b+c a plot of in[a] versus time yields a straight line with slope -0.0045/s. a. what is the value of the rate constant (k) for this reaction at this temperature? b. write the rate law for the reaction. c. what is the half-life? d. if the initial concentration of a is 0.250 m, what is the concentration after 225 s?

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?