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How is the half-life of a radioactive material useful for radioactive dating?
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Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature
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What is the relative mass of an electron? a) 1/1840 the mass of a neutron + proton b) 1/1840 the mass of an alpha particle c) 1/1840 the mass of a c-12 atom d) 1/1840 the mass of a hydrogen atom
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Chemistry, 23.06.2019 15:50
Astable atom that has a large nucleus most likely contains 1. more neutrons than protons. 2.more protons than neutrons. 3.equal numbers of protons and neutrons. 4.changing numbers of protons and neutrons.
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Which of the following subject areas contains questions that can be answered by science? alchemy ethics forensics politics
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How is the half-life of a radioactive material useful for radioactive dating?...
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