veronica25681
04.05.2021 •
Chemistry
How much energy is needed to change 8 grams of liquid water at 35 into steam/vapor at 136?
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Ответ:
silicon has 4 valence electrons
oxygen has 2 since in SiO3^-2 they are 3 this make valence electrons to be 6
SiO3^-2 have negative charge of two thes means has two extra electrons hence has 2 valence electrons