Chemistry, 03.12.2021 04:00 zachcamp5298
Sodium-24 has a half-life of 14.8 hours. How much of a 454.7 mg454.7 mg sodium-24 sample will remain after 3.7 days
Answers: 2
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According to the tide table below what time of day will the highest tide occur?
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Chemistry, 22.06.2019 14:30
Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
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Chemistry, 22.06.2019 20:30
The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?
Answers: 3
Chemistry, 22.06.2019 21:00
Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon
Answers: 1
Sodium-24 has a half-life of 14.8 hours. How much of a 454.7 mg454.7 mg sodium-24 sample will remain...
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