subject
Chemistry, 13.10.2020 19:01 PENTALIZARD2834

suppose 128 radioactive atoms have a half-life of 15 seconds approximately how many will be left after 30 seconds

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 05:30
What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion
Answers: 3
question
Chemistry, 22.06.2019 13:00
What must occur for air masses to form fronts
Answers: 3
question
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
question
Chemistry, 23.06.2019 00:50
What is the enthalpy of combustion (per mole) of c4h10 (g)? –2,657.5 kj/mol –5315.0 kj/mol –509.7 kj/mol –254.8 kj/mol
Answers: 1
You know the right answer?
suppose 128 radioactive atoms have a half-life of 15 seconds approximately how many will be left aft...
Questions
question
Mathematics, 15.11.2019 23:31
Questions on the website: 13722363