Chemistry, 02.10.2020 14:01 officialariana01
A radioisotope has a half-life of 12 days. If a sample is measured to contain 5 grams of radioisotope, how much time has passed if the sample originally measured 160 grams of radioisotope?
Answers: 3
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How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?
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Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?
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Chemistry, 22.06.2019 21:00
Write a balanced equation showing the formation of copper (ii) nitrite from its elements
Answers: 1
A radioisotope has a half-life of 12 days. If a sample is measured to contain 5 grams of radioisotop...
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