Compound has an empirical formula of CH & what is the molecular formula if its molar mass is 135.13 g/mol
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7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Modern weaponry has increased the number of deaths in wars and violent conflicts.

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.