Chemistry, 25.04.2020 01:32 tladitidimatso1783
As 1 g of the radioactive element radium decays over 1 year, it produces 1.16 × 1018 alpha particles (helium nuclei). Each alpha particle becomes an atom of helium gas. What is the pressure in pascal of the helium gas produced if it occupies a volume of 125 mL at a temperature of 25 °C?
Answers: 2
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What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?
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Consider these four line graphs representing speed in meters/second, where each x-axis is labelled in seconds and each y-axis is labelled in meters. which line graph indicates the greatest speed at 5 seconds?
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Ascientist measures the vapor pressure of a liquid. at 15° c, the vapor pressure was 19 kilopascals. at 25° c, it was 31 kilopascals. at 35° c, it was 59 kilopascals. which statement can be inferred from the observations?
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As 1 g of the radioactive element radium decays over 1 year, it produces 1.16 × 1018 alpha particles...
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