Chemistry, 24.06.2019 11:50 Nicoleazaria
News stories have claimed that cell phones may cause cancer or other health problems. others, including cell-phone providers, have indicated that there is no evidence to support the claim of cell phones causing health problems. which statements would most likely be found in a report issued by a cell-phone provider? check all that apply. cell phones emit radio waves, a form of nonionizing radiation. brain tissue is located near where the phone is held and absorbs radiation from the phone. cell phone use has increased to 303 million subscribers in the us as of 2010. the number and duration of cell-phone calls has increased.
Answers: 2
Chemistry, 22.06.2019 06:30
Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?
Answers: 1
Chemistry, 22.06.2019 13:30
Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?
Answers: 3
Chemistry, 22.06.2019 14:30
Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
Answers: 1
News stories have claimed that cell phones may cause cancer or other health problems. others, includ...
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