Chemistry, 19.12.2019 21:31 isabellebisio
Exactly how much time must elapse before 16 grams of potassium-42decays, leaving 2 grams of the original isotope? (1) 8 × 12.4 hours (3) 3 × 12.4 hours(2) 2 × 12.4 hours (4) 4 × 12.4 hours
Answers: 2
Chemistry, 22.06.2019 03:30
Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)
Answers: 1
Exactly how much time must elapse before 16 grams of potassium-42decays, leaving 2 grams of the orig...
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