Hi please help quick! A second order reaction has a rate constant of 0.0805 M^-1s^-1 at 1110 K and a rate constant of 0.0910 M^-1s^-1 at 1210 K. Calculate the activation energy for the reaction in kJ/mol.

R = 8.314 J mol^-1 K^-1

Which best describes how johannes kepler developed his laws of planetary motion

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?