sarahlearn3
17.09.2019 •
Chemistry
When the chemical energy in the coal is burned it is converted to.
a. heat energy
b. electrical energy
c. transitional energy
d. mechanical energy
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Ответ:
The number of protons in the nucleus of the atom is equal to the atomic number.The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom is equal to the sum of the number of protons and neutrons in the nucleus.
Explanation:
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