Nitrogen fixation is the process by which atmospheric nitrogen gas reacts to form ammonia, NH3. How much heat is released from the production of 254 g of NH3?
N2(g) + 3 O2(g) - 2 NH3(g)
ΔΗ = -42.0k

Match the following items. 1. high-intensity bundle of energy being emitted from some decaying nuclei gamma ray 2. particle radiating from the nucleus of some atoms beta particle 3. negative particle identical to an electron but radiating from a decaying nucleus alpha particle

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.