How much nitrogen-14 will be produced from a 200-g sample of carbon-14 after 17,190 years?
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Chemistry, 21.06.2019 22:30
Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.
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Chemistry, 22.06.2019 02:30
Based on the equation and the information in the table, what is the enthalpy of the reaction?
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Chemistry, 22.06.2019 06:40
Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.
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Chemistry, 23.06.2019 03:30
Why do electrons further from the nucleus have more energy
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