What makes a glass different from solid such as quartz?
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What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

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.

What is the percent by mass of oxygen in fe2o3