Chemistry, 03.07.2019 15:00 emmaraeschool
Abattery has chemical energy, which can be used to generate thermal and radiant energy in a lightbulb. which best explains what happens to the amount of energy in this scenario? the total energy in the system increases because chemical energy creates thermal and radiant energy. the total energy in the system decreases because chemical energy disappears as thermal and radiant energy are generated. the total energy in the system remains the same as the decrease in chemical energy equals the increase in thermal and radiant energy. the total energy in the system remains the same as the increase in chemical energy equals the decrease in thermal and radiant energy.
Answers: 2
Chemistry, 22.06.2019 08:00
Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next
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Chemistry, 22.06.2019 08:30
What is the independent variable in this investigation? mass volume sample number substance density
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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
Abattery has chemical energy, which can be used to generate thermal and radiant energy in a lightbul...
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