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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 20:00
What happens to the temperature of a substance when the average kinetic energy of its particles increases?
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Chemistry, 22.06.2019 20:00
I’m an electrically neutral atomic any element, there are equal numbers of
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One of your bike tires has a volume of 18.2 L at temperature of 22.0°C. The temperature rises to 45....
Mathematics, 26.06.2019 03:00
Mathematics, 26.06.2019 03:00
Mathematics, 26.06.2019 03:00
English, 26.06.2019 03:00
Mathematics, 26.06.2019 03:00
Mathematics, 26.06.2019 03:00
Mathematics, 26.06.2019 03:00
English, 26.06.2019 03:00