An example of an atom that has no charge is one that has
a. 1 proton, 2 electrons, and 3 neutrons.
b. 3 protons, 1 electron, and 3 neutrons.
c. 2 protons, 2 electrons, and 1 neutron.
d. 3 protons, 2 electrons, and 1 neutron.

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

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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