Chemistry, 05.12.2019 21:31 aliviafrancois2000
An unknown radioactive substance has a half-life of 3.20 hours . if 22.8 g of the substance is currently present, what mass a0 was present 8.00 hours ago? express your answer with the appropriate units.
Answers: 3
Chemistry, 22.06.2019 02:00, webbhlharryteach
In which of these cases are the two wave points considered to be in phase with each other?
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Chemistry, 22.06.2019 18:00, jessicannoh5965
The fact that the total amount of energy in a system remains constant is a(n)
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Chemistry, 22.06.2019 18:00, jeepjose58
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
Answers: 1
An unknown radioactive substance has a half-life of 3.20 hours . if 22.8 g of the substance is curre...
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