The activation energy of a reaction is 130.4 kJ, and frequency factor (A) is 2.42 x 1010 sec -1, at what temperature (in Celsius) is the rate constant equal to 0.07878 sec-1

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

If you fill your car tire to a pressure of 32 psi (pounds per square inch) on a hot summer day when the temperature is 35°c (95°f), what is the pressure (in psi) on a cold winter day when the temperature is -15°c (5°f)? assume no gas leaks out between measurements and the volume of the tire does not change.

Does the formation of all chemical bonds is based on sharing of electrons?