An ionic compound is formed when
!
a. a metal bonds with another metal
b. a metal bonds with a nonmetal
c. three nonmetals bond together
d. a nonmetal bonds with another nonmetal
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Ответ:
Ответ:
Explanation:
"How many moles of calcium atoms does it contain? The answer is one half of a mole, because 1 mole is equal to 6.02 x 1023, so a half of a mole would be equal to 3.01 x 1023 atoms. Okay, so if it contains 0.5 moles of calcium atoms, how much mass would that have? The answer is about 20 grams."