Chemistry, 18.10.2020 08:01 zeesharpe05
Which of the following represents an isotope containing 39 protons, 39 electrons, and 30 neutrons?
a. Yttrium-39
X þ. Yttrium-108
C. Yttrium-78
d. Yttrium-69
Answers: 1
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Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear
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4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound
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Silver reacts with oxygen to produce silver oxide. (write balanced chemical equation and identify type of chemical reaction.)
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Which of the following represents an isotope containing 39 protons, 39 electrons, and 30 neutrons?...
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