Đồng có 2 đồng vị trong tự nhiên:
63
29Cu
và
65
29Cu
, trong đó đồng...
![subject](/tpl/images/cats/himiya.png)
Chemistry, 18.10.2021 09:50 connie2168
Đồng có 2 đồng vị trong tự nhiên:
63
29Cu
và
65
29Cu
, trong đó đồng vị
65
29Cu
chiếm 27% về
số nguyên tử. Phần trăm khối lượng của
63
29Cu
trong Cu2O có giá trị là
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 15:50
If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g
Answers: 1
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 21:00
Which property of water causes water drops to bead on a freshly waxed car?
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 21:00
Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.09.2020 22:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 27.09.2020 22:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.09.2020 22:01
![question](/tpl/images/cats/istoriya.png)
History, 27.09.2020 22:01
![question](/tpl/images/cats/mat.png)
Mathematics, 27.09.2020 22:01
![question](/tpl/images/cats/mat.png)
Mathematics, 27.09.2020 22:01
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/es.png)
Spanish, 27.09.2020 22:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.09.2020 22:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.09.2020 22:01