to find the atomic mass of an element that is included on a periodic table, what must be found first? a. the number of protons in that element. b. the number of electrons in that element. c. the number of neutrons in that element. d. the average mass of all the isotopes.
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Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?
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Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand
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Essay-alternative energy sources research sources of energy that are being developed. write a report of 350-400 words discussing the information you learned concerning the development of various energy sources and the impact that you think they will have on your life. include sources cited at the end of your report using the mla format. follow the rubric guidelines. note that wikipedia is not an appropriate resource for a research paper. worth 99
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to find the atomic mass of an element that is included on a periodic table, what must be found first...
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