Chemistry, 04.02.2020 18:51 Janznznz4012
How long will it take for a 750 mg sample of radium with a half life of 15 days to decay to exactly 68mg?
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Chemistry, 22.06.2019 07:30
What three things determine the shape and size of a puddle when water is poured out onto a surface
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Chemistry, 22.06.2019 18:10
Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
Answers: 1
Chemistry, 23.06.2019 04:31
What are the coefficients that will balance the skeleton equation below? n2 + h2 → nh3
Answers: 1
How long will it take for a 750 mg sample of radium with a half life of 15 days to decay to exactly...
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