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Chemistry, 21.06.2019 20:30
Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?
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Chemistry, 22.06.2019 06:00
Match the name of the following compound: mgso4 · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate
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Chemistry, 22.06.2019 06:00
One does not belong why? ice, gold ,wood ,diamond and table salt
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Mathematics, 02.10.2019 16:50
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Mathematics, 02.10.2019 16:50
Mathematics, 02.10.2019 16:50
History, 02.10.2019 16:50
Mathematics, 02.10.2019 16:50