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A radioactive material initially has an activity of 800 counts per second. Eight hours later it has an activity of 200 counts per second. Find the materials half life
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Chemistry, 22.06.2019 12:30
Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
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Chemistry, 22.06.2019 12:30
Avariable that is not being directly tested during an experiment should be
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Chemistry, 22.06.2019 12:30
Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17
Answers: 1
A radioactive material initially has an activity of 800 counts per second. Eight hours later it has...
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