At 42°C, what is the fraction of collisions with energy equal to or greater than an activation energy of 83.40 kJ/mol? Give your answer in scientific notation.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

In which environment would primary succession occur? a forest with a few remaining trees after a recent wildfire an area of exposed rock after a glacier melts away beach that is exposed to the air at low tide an abandoned baseball field in a small town

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space