Chemistry, 16.07.2019 11:30 channarlawassociate
Why did mendeleev put bromine (br) and chlorine (cl) in the same group on the periodic table they have similar masses. they have similar properties. they are both gases. they are similar alphabetically.
Answers: 2
Chemistry, 22.06.2019 00:30
Drive down any three characteristic of modern periodic table
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Chemistry, 22.06.2019 11:00
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.
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Chemistry, 22.06.2019 14:30
How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.
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Chemistry, 22.06.2019 15:30
Draw the lewis dot structure for each of the following polyatomic ions
Answers: 1
Why did mendeleev put bromine (br) and chlorine (cl) in the same group on the periodic table they ha...
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