25
Explanation:
The coefficient 5 applis to each element in the molecule, so there are 5 times 1 H atom, 5 times 1 N atom, and ,since O has a 3 subscript, there are 5 times 3 O atoms. Therefore there are 25 atoms.
Answer:
P³⁻ + Cl⁻ --> PCl₃
PCl₃: phosphorus trichloride. prefix in front of chloride is "tri"–meaning three.
yes
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high B or a low A:) Good Luck
