![subject](/tpl/images/cats/himiya.png)
Chemistry, 05.02.2020 07:47 mathamaticlly
The half-life of carbon-14 is 5,730 years. how many grams of parent material will remain from a 100-gram sample of carbon-14 after 2 half-lives?
75
6.25
12.5
25
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:50
The number at the end of an isotope’s name is the number.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 14:00
In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:30
How many grams of mgbr2 are needed to produce 75g or metal?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 17:40
Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.
Answers: 1
You know the right answer?
The half-life of carbon-14 is 5,730 years. how many grams of parent material will remain from a 100-...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 01:00
![question](/tpl/images/cats/istoriya.png)
History, 21.11.2020 01:00
![question](/tpl/images/cats/istoriya.png)
History, 21.11.2020 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 01:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 01:00
![question](/tpl/images/cats/biologiya.png)
Biology, 21.11.2020 01:00
![question](/tpl/images/cats/istoriya.png)
History, 21.11.2020 01:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.11.2020 01:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 01:00
![question](/tpl/images/cats/istoriya.png)
History, 21.11.2020 01:00
![question](/tpl/images/cats/fizika.png)
Physics, 21.11.2020 01:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.11.2020 01:00