subject
Chemistry, 28.06.2019 01:00 totie7712

The half-life of polonium-218 is 3.0 minutes. if you start 10.0 g, how long will it be before only 5.0 g remains?

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 21.06.2019 16:10
Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer
Answers: 1
question
Chemistry, 22.06.2019 03:30
At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k
Answers: 1
question
Chemistry, 22.06.2019 06:00
How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar
Answers: 1
question
Chemistry, 22.06.2019 06:10
Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.
Answers: 1
You know the right answer?
The half-life of polonium-218 is 3.0 minutes. if you start 10.0 g, how long will it be before only 5...
Questions
question
Mathematics, 22.02.2021 18:00
question
Mathematics, 22.02.2021 18:00
question
Mathematics, 22.02.2021 18:00
question
Chemistry, 22.02.2021 18:00
question
Mathematics, 22.02.2021 18:00
question
Mathematics, 22.02.2021 18:00
Questions on the website: 13722367