![subject](/tpl/images/cats/himiya.png)
Chemistry, 11.10.2021 22:40 payshencec21
Can someone help please?
Copper occurs naturally as a mix of two isotopes: Copper-63 with a mass of 62.930 amu and copper-65 with a mass of 64.928 amu. The percent abundance of copper-63 is 69.09%.
Calculate the atomic mass of copper.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 23:30
With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 02:10
Detrimental the length of the object shown 1. 97.8mm 2. 97.80 mm 3. 97mm 4. 98mm
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 08:00
Can anyone answer these questions? ? i need it before 1: 00pm today
Answers: 1
You know the right answer?
Can someone help please?
Copper occurs naturally as a mix of two isotopes: Copper-63 with a mass o...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 06.06.2021 23:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 06.06.2021 23:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 06.06.2021 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 06.06.2021 23:00
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.06.2021 23:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.06.2021 23:10
![question](/tpl/images/cats/mat.png)
Mathematics, 06.06.2021 23:10
![question](/tpl/images/cats/health.png)
Health, 06.06.2021 23:10