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15.01.2021 •
Chemistry
What is the coefficient for this formula? 9 NaCl2 A. 11 B. 9 C. 2 D. 1
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Ответ:
B. 9
Explanation:
The formula of the compound is given as:
9NaCl
Coefficient is the number before the compound. The compound here is made up of sodium and chlorine.
Therefore, we have 9 as the coefficient and it is 9 moles of NaCl.
The compound have 1 atoms of NaAlso 1 atom of ClNote, NaCl is an ionic compound.
Ответ:
32
Explanation:becayse