subject
Chemistry, 29.11.2019 13:31 zoeyanai1

The half-life of a radioactive element is 1250 years. what percent of atoms remain after 7500 years?

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 21.06.2019 22:00
To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold
Answers: 1
question
Chemistry, 22.06.2019 12:00
A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?
Answers: 1
question
Chemistry, 23.06.2019 01:50
Ablock of aluminum is dropped into a graduated cylinder with an initial volume of water at 75ml and the volumes rises to 90ml. if the block has a mass of 40.5 g what is its density ?
Answers: 1
question
Chemistry, 23.06.2019 09:40
Which type of volcano is shown in the image?
Answers: 2
You know the right answer?
The half-life of a radioactive element is 1250 years. what percent of atoms remain after 7500 years?...
Questions
question
Mathematics, 21.12.2020 21:40
question
Mathematics, 21.12.2020 21:40
Questions on the website: 13722360