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Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

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.