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13.02.2021 •
Chemistry
Is the process represented below an example of a physical or a chemical
change?
CO2(s) —» CO2(g)
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Ответ:
Ответ:
An atomic nucleus is positively charged because it is composed of protons.
Explanation:
Protons and neutrons are what the nucleus contains. Neutrons have a relative charge of 0, while protons are positively charged.