![subject](/tpl/images/cats/himiya.png)
Chemistry, 27.01.2021 21:40 abbygriffin2693
What is the charge of an atom with 21 protons and 20 electrons?
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 22:00, NREYESLDS2806
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
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 02:30, rileyeddins1010
List four observations that indicate that a chemical reaction may be taking place
Answers: 1
![image](/tpl/images/cats/himiya.png)
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:50, zaleemawhite
Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.
Answers: 2
You know the right answer?
What is the charge of an atom with 21 protons and 20 electrons?...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 22:00
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/health.png)
Medicine, 16.11.2020 22:00
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/en.png)
English, 16.11.2020 22:00
![Konu](/tpl/images/cats/obshestvoznanie.png)
![Konu](/tpl/images/cats/mkx.png)
Arts, 16.11.2020 22:00