Pls help!! 20 points A particular reaction has an activation energy, Ea, of 189 kJ/mol. If the rate constant for the reaction is
0.00205 s-1 at 457 °C, at what temperature (°C) would the rate constant be 0.200 s-1?

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

How are isotopes of the same element alike?

Calculate the ph of a .10m nh4cl solution. the kb value for nh3 is 1.8×10^-5