How is graphite different from other allotropes of carbon? a. Graphite forms only carbon atoms, without other atoms mixed in.

b. The carbon atoms in graphite are arranged randomly, without a crystalline structure.

c. The carbon atoms in graphite are packed extremely densely and tightly

d. The carbon atoms in graphite are arranged in widely spaced layers

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.

Classify this reaction: 2al+n2-> aln.

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.