Chemistry, 06.12.2019 00:31 markkessler7149
Some fuel cells are powered by hydrogen. scientists are looking into the decomposition of water (h2o) to make hydrogen fuel with the of the sun’s energy. what challenge do scientists face with this task?
a.
decomposing water requires a high activation energy.
b.
the sun isn't a renewable resource.
c.
decomposing water results in toxic byproducts.
d.
scientists are uncertain what to do with the excess oxygen.
Answers: 1
Chemistry, 21.06.2019 16:00
What is the molality of a solution that has 4 mol of kci in 0.800 kg of water
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Chemistry, 22.06.2019 01:30
Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .
Answers: 3
Chemistry, 22.06.2019 09:00
If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?
Answers: 1
Some fuel cells are powered by hydrogen. scientists are looking into the decomposition of water (h2o...
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