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janrusk3983
27.04.2020 •
Chemistry
How do you know that solids (such as ice), liquids (such as water), and gases (such as water vapor) are all made up of matter? Choose the two statements that apply. A. They all have mass. B. You can see all of them. C. They all have volume. D. You can feel all of them. E. They all have colors. F. You can smell them
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Ответ:
mass number
=number of protons +neutrons=8+9=17